Hello,
This forum is for general non-Pokémon discussion.
If you are looking for a tutor, I suggest trying the
Battling 101 forum.
While I don’t think there are currently VGC signups ongoing, it’s worth checking back every so often and also joining the Discord server in there to see if anyone is willing to help.
In addition, I recommend checking out the VGC forum like Ivy said, and also check out the
VGC Discord, #competitive-advice in the
official Smogon Discord server and the
VGC room on Pokemon Showdown!.
Sorry I can’t be of more help. Welcome to Smogon!