Warning, long post ahead.
I hope you understand that most of the problem could have been lightly avoided if you said you wanted to be "pro". If you wanted to be "top 100" tier or something.
Cookiezi-tier however. That puts you at a tier that only has one other person with you. It's not just a tier, it's the tier. And to get to that tier you have to burst through several other tiers. Through several other thousands of players.
Osu! is, when you look at it, a circle-clicking game. It requires things like Stamina, Reaction Speed, Memorization, et cetera. Some people have more, some people have less. Can you improve?
Yes. You obviously can improve. You can raise your stamina and raise your speed, accuracy, and all that religious mumbo jumbo people appear to be so fond of talking about in the osu! community. I believe, however, that there's people with talent, and people without talent.
You can say that a person with talent will easily pass any hard-working commoner. If a person who has talent inputs the same amount of work that a person without talent has, the person with talent will come out on top. There's nothing absurd about that. And you can say that Cookiezi had "talent", as far as that goes for a game. (The Reaction Speed or Memorization needed for osu! isn't something to be frowned upon, sadly.) Do you have "talent"?
If you do, then you have to consider how much time did Cookiezi spend playing this game to achieve his point? If you're not working harder than cookiezi was, you are not going to get to the same place in a shorter amount of time, unless you assume you're more "talented" than he is. Given, this is only in an utopian world where everyone else's skill level has fallen back to what it was when cookiezi started, and thus assuming that you're gonna be climbing the ranks in a community that isn't the community of today, but when Cookiezi was ranked.
Cookiezi was first for quite a while, from what I grasp, and he was playing a few years. Right now, the people who were top back then have had much more time to train. Sure, Cookiezi was still a far shot ahead from most of them (You can see that in his replays - God bless youtube, by the way.), but they've also improved.
You -do- understand that what you say when you're saying that you will achieve "Cookiezi" tier means that you're trying to get to the level of a player who was pretty much undisputed rank number 1 for an absurd amount of time and had scores back then that aren't achieved by players today even after they've continued training after Cookiezi left?
Casting aside the thought of "talent" you still have to consider a learning experience curve. You're playing, and a few other thousands of players are playing at the same time. Some are better than you, some are worse. Or maybe you're the best, who knows. The question is, can you improve faster than these players? The top players who were still top back then, are still playing and haven't reached "Cookiezi-tier" yet? Is your learning curve just so much more advanced than others that you honestly believe you are going to achieve Cookiezi-tier in a year when players who have consistently been at the top for much longer than you have, have played for much longer than you have, haven't done that yet?
I'm not saying you won't get Cookiezi level. Maybe you will, maybe you won't. You have to understand however that there are human limitations to how fast one can be when compared to another. A person can be faster than you. Why? Just because he is. With the same amount of training. Even if you train more, maybe he'll just be faster anyway because you can't push yourself past your limits. Assuming your limits are unbound and "the sky's the limit", then you have to consider all the other people who are playing at the same time that you are. Are you improving faster than they are? Because that's the only way you're gonna end up ahead in this scenario.
Surely, we do not have statistics that can really say how fast one can click, who has talent and who doesn't, your learning curve and all the like. But I believe we can all come to the conclusion that claiming you'll get Cookiezi-tier in a year is extremely arrogant and perhaps even disrespectful towards those that have been playing for much longer and still haven't gotten to that point. You're initiating a race where you're far, far behind the others, and you're claiming that you're gonna finish this race in a ridiculously small time, when the others have been in the race for a long time.
It's not a matter of being optimistic or pessimistic. It's just a matter of taking a deep breath, looking at where you want to go, look at the skill of others, compare it to your own, and try to determine the time it will take for you to reach the end. And one year... one year is an ambitious goal.
If you've taken the time to read all of this, then you probably wasted some of the time you could and probably should have spent training. If you're still reading, then I wish you good luck in your endeavors none the less. But you appear to have the bad habit of being loud. Have you heard the saying "The dog that barks doesn't bite"? If I were to translate it to this thread a bit more coherently, I'd probably say: "You're all talk."
Please, don't be all talk. You don't need to be loud or let other people know what you're trying to achieve. If you're so confident you're going to do it, there's no need to say anything. We're going to notice you when you get to the top of the mountain. But if you talk so much and then can't manage it, then I hope you understand if some people laugh as you drop to the bottom.
Regardless, I have nothing to do with this, and I find your thread interesting none the less. The posts on the thread quickly evolved into a discussion that is boring and slightly annoying, specially with the two pages in the middle with the two guys discussing about sight reading (Totally relevant, guys!).
Good luck, and stuff. As I've said in your Introduction Thread:
"Unattainable dreams are the best kind."