I'll be honest. There is pretty much everything possible wrong with the mapset.
First of all, BPM is 174 and offset 215 (quick check, so these might need some tweaking later on). BPM = Beats Per Minute = rhythm / tempo of the song.
Fixed the BPM and offset for every diff It must the same for all diffs (currently TAG4 has 100, others 120). Offset is the point where the first main beat of the song starts.
Open AiMod from File -> Open AiMod or CTRL + SHIFT + A. There shouldn't be any errors there, if the map is done properly (except for a few distance snap errors in Hard+ diffs). Checked AiMod, fixed all the errors Check
Ranking Criteria from osu! wiki to see all the basic rules for mapping.
Check Youtube and/or osu! forums for mapping guides.
TAG difficulties haven't been allowed for years. So if you are going for ranked, remove those.
Removed TAG4Please DO NOT try to make maps that you can't play yourself at all.
I'm using the other harder maps for other people, I will remove Insane and then will try on some other maps You are using way too many circles. Replace most of them with sliders.
I'm going to add sliders on other diffs., Because a mapset without sliders are a bit bad You have to use distance snap 100% of the time in Easy and Normal diffs, and most of the time in others.
Okay, i will use that if it really needs some fixing with itSet a preview point. It is the point, from where the music starts playing when you select it on osu! do it from upper toolbar -> Timing -> "Set Current Position as Preview Point" (has to be the same for all diffs).
Done, in other point I have no idea what that impacts at allUse Slider Tick Rate 1 on all diffs, please.
DoneSince you are new to mapping I'll remind you of kudosu system.
Remember to give kudosu to all helpfull mod posts on your mapset's thread. That way your mapset's star rating goes up -> it goes up in the map list -> more likely to get attention. But DO NOT give kudosu to same person twice (in one thread), unless the map has drastically changed between mod posts.