Ive been doing rly poorly in ranked lately. Do you think i can get banned if i get reported

You cannot get banned for doing poorly. Your rammus support is questionable but you're still playing the position correctly and therefore will not be punished. Unless you've been saying some questionable things; you've got nothing to worry about.

That couldn't be the only reason you were banned no offense.

I get reported in about 75% of my games by either my team for not doing well or even doing better than the person who wanted to carry and questioning their build/position choices and by the enemy team usually for completely my opposing laner. Reports on their own mean nothing has not affected me in 7 years other than receiving the whole "we realize everyone has a bad day" message.

I mean, if people keep reporting you because you do very very very stupid stuff in game, which is technically feeding, then yes you can get reported for inting.