Drop in, ollie or neither?

So I know how to turn whem driving (But not very fast), kinda how to stop when dragging my foot on the ground, and I know how to do this drop in move on flat ground ( front trucks slam to ground) And my question is if I should learn how to drop in or basically just drive on ramps, how to ollie, or should I learn something different/easier for me to improve?

(If different pls tell me what I should learn)

Thanks