Yo. I was a relax player a while ago. I play osu! sometimes since 2021, so my aim is already decent.
The problem is that i can't manage to click on time properly, and my aim is not used to slower maps like the 3/2* ones. Anyone has some tips on how i can improve this situation? Ik i shouldn't had started playing relax on first place, but my friend that started playing earlier than me, told me to use it, so i kinda got stuck on using relax for everything.

Playing NM as you should be!

Start from the bottom, and improve basic tapping and reading mechanics. I really mean it, 1 or 2 stars, or whatever the highest star maps that you can consistently get good acc (roughly at least 97) on are. Maybe add HR on maps that are low ar (NOT to maps that become ar 9.8 or 10 after HR, since you will likely build bad habits if you only ever play AR 10), since realistically you won't need to read super low ARs once you get into higher SRs. Work your way back up. The raw mechanics you may have picked up from playing RX will likely cause you to improve faster and struggle less once you enter higher star ratings but you shouldn't take that to mean that you don't need to play lower star maps.