Exciting Things We Did In Gymnastics

Today for P.E we did gymnastics. I found it very hard to do the challenges(forward, backward roll, jumping over a cone) I tried doing it but my mind is telling me no. I learnt how to jump over a cone on the beam but I can't quite do it backwards. I think I need more practice on the ''mind over matter'', I can't tell my mind to do it, it keeps refusing to do the challenges.