i suck so much at this
osu! isnt something you can pick up and be good at, the best thing to do is keep practicing. Using mods like No Fail and Half Time to learn the patterns in some beatmaps can help. Staying motivated to actually finish the beatmap even if you're doing horrible is important if you want to improve. If you use the mouse, mess around with raw input, windowed/fullscreen, framerate and turn mouse acceleration off. Oh, and imo its easier to use Z and X as opposed to using left and right click, it will wear out mouses pretty quick.
Oh, and add me to the OP. Name is the same as here.