You put yourself out there and you got some harsh, but fair, criticism. You can look at it like you were not meant to do this and just quit, or you can refer back to your own words: "maybe next time i shall do better.."
Dont just "maybe" do better. DO better! You can only improve from this point forward!
I will say one thing though: You're a brave person. You put yourself out there in front of the unforgiving eye of the camera and shared it with a community who knows what they're talking about when it comes to magic.
Considering that you even made this thread, it shows that you really don't want to quit magic and are looking to be talked out of it. No one's going to talk you out of it. Don't focus on the negative. Look forward and move on.