Knowledge and tips wanted!

Hello everyone,

I'm a silver player who wants to go great the new season. But lately I feel like I have too little influence in a game to carry even when fed and to be honest I have games where I feed too and I just don't know how to safe farm when i start feeding to stop dying. What could I do to start upping my gameplay?

When nobody goes tank, I try to take a tank to beef up the team and when I would engage the followup isn't that good.

When I play adc in teamfights, I don't know how to play without some form of peel if there are 2 assassins nearby who engage from behind or a fed tank. Or how to survive a 2v1 lane or 3v1 gank when the support decides to roam.(what to do here would be great info, i would love to learn how to hold the lane alone for a while.)

When I play support I usually have the feeling my supportiveness is useless because we have too little damage and lose that way.

Even though I do love to play all the roles.

Do I need to play the meta champs to carry? And do I specifically need a small champ pool?

I love ashe(my favorite <3, I know how to kite and it feels great when doing it hahaha), caitlyn, lulu, rek'sai, sejuani, braum(recently bought), rakan, nami, graves, renekton, lux and quite a few more.

P.S. I hope I'm in the right discussion board.