I'm considering you sparred other professionals before. So i thought you might know if such a style would work in a self defense situation. Nor did i got into a fight, which i don't want to.I'm 53 years old and have never had an actual "fight" in my life. I'm not demanding proof of success in a fight. I am looking for proof of concept though. And what constitutes proof of concept depends on the concept you're putting forward. If you tell me you have a more powerful way of delivering a side kick--and you posted video of you hammering a heavy bag with that side kick--that would be something. If your concept is that you've devised a self-defense system, then yeah that proof is going to be more difficult to provide. Hitting a heavy bag isn't proof of that concept.
But here's my counter question: Why do you ask if it would be useful to me if you're not preparing to teach this? It doesn't matter whether it would be useful to me. Only whether it would be useful to you. Which it won't. Not as it exists now. There's no sidestepping that.