Performing a back tuck by yourself will most likely by a gradual process. Your coach will give you less and less of a spot as your technique improves, until s/he is mostly just standing there, ready to come in if necessary.
Many gymnasts find it helpful to try a back tuck off of a mat to give them extra height to complete the flip. You’ll also want to have a soft mat to land on.
Don’t give up – a back flip is a difficult skill, and it can take a long time to master. Once you do get it, though, it will be a very cool trick to have in your repertoire!
Thanks to Kelly, Haley,
Aria of Giants Gymnastics for demonstrating the drills and their back tucks.