a member

Well...I'm at the fashion designer course and today me and my friend had to take apart a blazer and I started doing it but I was going slower with it to not damage the clothe and one of my friends just said "oh let me do it now" I said okay I removed only one line yet, my other friend was removing another part of the blazer and I offered to help she said "oh don't worry it's fine here" but right after the other friend (I have 4 friends) went there to help they all were taking the blazer apart and didn't let me help I offered to help a lot of times and they just kept telling that they don't needes it or just didn't said anything, I might be slow at this but it's my first time doing this and they think that I'm not capable of doing it but how can I know anything if they don't let me try I wanted to help and to learn if i learn I can be fast like them but they don't care and I just stayed there sitting scrolling through my phone but then if i scroll trough my phone they get angry than I'm not doing anything but if I try to help they deny and ignore me......am I being too much?