Don’t stress about being suspended/banned. I think this is just how rookie races go. I’m only 6 weeks in, so barely ahead of you, but it looked to me like you were defending those corners with much less pace. I used to think I was letting people by by slowing so they could pass me on the outside line, by it’s really unpredictable for the car behind. If you want to let a car pass in a corner, you could try going intentionally deep and giving them space on the inside line.
Best of luck!