if im botting on 1 account and playing legit on my main that i dont bot on! and im on both at the same time will both account get banned. if im playing the same time my bot is going?

Only if there is proof that the legit account was botted, otherwise i dont think it will get banned.

There's always a chance but probably not

No you won't get banned. They will only ban your main if you bot on it. 100% you won't get banned unless your IP is flagged, but even then you only really get flagged if your a mass account farmer/creator, which by the sound of it you're not. So don't worry just chill out :P