For future reference:

Try champions before you go to PvP. Don't just do some crazy random pick and build that you have no idea if it is remotely viable or not without some research or at least going into sandbox custom to see if it works.

Now, I'm not saying never use off meta picks or you always need to play bots or something before you play a champion in PvP, but at least take like three minutes to do some research on it.

Thank you