Need Some Advice

Hello summoners (LOL)

Pretty much, I need advice on how to become less frustrated during games. Ironically enough, ranked will not make me as angry as some norms, BUT if I expect to actually climb I need norms to practice.

I can mute all, but I usually feel frustrated if my team isn't doing well. I have to play on a higher level to be useful and potentially the reason they win.

I haven't done will my last games because of a personal reason, but I'm starting to wonder if I need to play a single player that is competitive but ultimately means I don't have to worry about my team.

If I am faced with a good zed or katarina, it means I will barely hang on in lane (currently) because I play mages mid. I also play adc.

Right now I'm not upset because I'm on a massive losing streak, I am upset because I'd really like to find a way to always enjoy this or seek a better game for me. I like to blow of steam and kill people if I have had a long day.

I am getting a new playstation, until then I have my computer.