I just started and did the thoracic bridge today; however, toward the end I could not do the movements. The one where my feet were against the stall bars and I was supposed to push my body up I used a ball to get into position. I was also not able to do the one with the hip and/or shoulders touches as I'm not strong enough or the one after that (I believe).
So, how do we handle those movements that we are not strong enough to do. Should we skip them or try to modify as best we can (like I did with the one that I used a ball on).
Thanks.