Cheer issues

I just moved back to my old school, and joined a cheer team (my first time in cheer, was a gymnast all my life). There's also another new girl and they mostly talk to her, only few people talk to me. When i try to talk to them i feel like they're cold or ignore me. I also want to be a flyer, but they make me a back spot, i want to ask my coaches to make me flyer but i think I'm too fat. When i mess up back spotting during a stunt i feel like they blame me and just stare at me. Its hard being a back spot because you have to lift up most of the flyer's weight (which hurts my shoulders a lot). i want to quit and go back to gymnastics but my mom paid a lot of money. I feel really depressed right now and I hate myself. What should i do? And what am i doing wrong?