stuck and confused

I started a new club at school recently, and I'm being mentored by some other kids who have been doing it for a while, but I kinda suck at it. there are some other new kids too but it seems like they've gotten it pretty much down pact and I'm the only one struggling. when the kids mentoring me have to stop and pull me aside to teach me one on one they seem annoyed and frustrated. there's someone else who started like a week or two before me and every time she tries to help and encourage me it feels super condescending and makes me feel like everyone knows I'm doing bad and can tell I'm nervous. I want to quit but my mom and the teacher keep telling me how proud of me they are and I don't want to disappoint. there's some big events that happen soon too and I'm not ready for them it sucks so bad. I like what I'm doing but I know I'm not great at it and i really don't know what to do. if I don't get better soon I'm sure they'll cut me and that will just be embarrassing.....