Keep practiceing is al i can suggest for you to do.
Everyone was a total potato that couldn't do anything at the start,
Just keep playing games and learn how to do different stuff, You might still feel like this for a few hundred games, But since a large amount of the comunity players have played well over 1-2 thousand games you can just do as them. keep playing
It's litteraly the best thing you can do.
For mechanics,tactics,or simply doing moves. You can just look on your opponent,friend, or just random player on what type of joint they move in any situation.
Sorry for being kinda shitty at the grammar and what so ever. Kinda tired and can't be bothered with it, But hope i helped you out atleast for a little bit.
-Cheers