I need to pay attention to the forums more apparently, as I never saw this thread until now.
In terms of your dedication and progress on osu!, it's impressive. Your DT skill, though still not at it's peak I believe, is coming along nicely. However, I feel that your main weaknesses right now are tricky patterns, using HR/HD, and even just FC'ing difficult songs without mods (which could coincide with tricky patterns) (FL doesn't count, that's literally memorization). People believe that you're just farming for pp, and not actually trying to become the "Next Cookiezi" (though I'm certain that this has been stated over and over again). While I can tell that your dedication to this game is intense, you probably shouldn't play just for pp. You've improved on that quite a bit, but it's evident that there's still some of that here and there.
When your highest pp score without DT is only 161, that's probably a hint stating that you probably want to improve in other areas. Taking a look at
some random user behind you in rank (because clearly rank is the best way of determining skill), you could see that they had tried to switch up different skill sets, and while no-mod seems to be their ballgame, they were perfectly capable of performing some DT/HD scores here and there. And that's what you are lacking. As of now, you're DT skill excels when compared to others in your rank. But DT is just one mod/aspect of osu out of a few selective ones (once again, not counting FL, that's just memorization).
What made Cookiezi different from others at the time was his ability to play anything (save for long quick streams past 240BPM which don't really exist in ranked maps). His best score may've been Remote Control on HD+DT, but he also proved that he can play with other mods as well, such as Freedom Dive Another with HR, or Airman with HR. He was even able to play with Hidden (well clearly if Remote Control was done with Hidden as well), and although he didn't prefer to play with HD, he could still use it and crush others in the highscores. Just because you dislike the HR/HD mods doesn't mean you should run from it forever. You say that you'll practice it eventually, but procrastinating on the problem again and again is a terrible habit/trap to fall into, and a difficult one to recover from.
I guess what I'm trying to say is that you're motivation is great, but you've got to start paying attention to other aspects of osu, rather than just DT. DT is a great skill, but you must master the other mods before people will start taking you seriously. The more you ignore them, the more people like thedamntrain will mock you. I believe you have the potential to do it, but you've got to put in equal effort to everything.
Then again, I'm just a measly rank 26k in standard who plays other gamemodes, so maybe I don't know anything.