Should I continue? 🚴🏼‍♀️

So I am involved in a school program called H.P.V (Human Powered Vehicle) and E.E.V (Energy Efficient Vehicle) and I have been considered as pretty good (I have been a driver every year since I started, which is about 4 years). We are considered as a good team as we come out in the top 5 out of 50 teams. And I love competing and training, but lately I have been feeling as if I won't be good enough next year and I don't want to be the 'bad one' in the team. I get really good scores in training on the recumbent bikes at school, but I don't do as well in the actual cars (which is more important as we are competing). I don't know what to do. Do I keep competing as a driver or just go for pit crew? I really don't want to let the team down and all of my friends do it so...

This is my team (one out of 5 team and only drivers), but i am not in the picture as I was away.

This is two of our teams last year including pit crew and drivers (which I am in, I am the first standing up on the left, also do I look fat or overweight?)

P.S. Sorry I had to blur out our team logos for safety reasons. 🚴🏼‍♀️