WAG Back handspring mental block

[Sparklyllama99]

I’m starting tumbling again in college. I had a back handspring for a while but then it was a while since I threw one and now my brain legit wont let me throw it. I know I can do it physically and I’ll throw it on the tumble track/trampoline and even with a barrel or a spot. The second that nothing is there though or I’m not on the tramp I can’t do it no matter how long I stand there and try to just throw it. I feel like I’ve tried everything and it’s so frustrating because I was able to do it a few months ago but now I can’t throw it at all. Its something about jumping backwards by myself because back walkovers are totally fine. Any tips would be greatly appreciated. Thanks!