I started tumbling again after 15 years, but I used to have a roundoff BHS. I have been going to the one gym in my area, and it is not helping. The instructor doesn't pay attention to anyone, has mostly little kids who run amok, and I am learning bad habits because I tend to cross my legs before landing and turn around to face the same side when I do a cartwheel or roundoff. The instructor did not correct me or even mention that I was doing it. I started taking video of myself, and I've been doing it for over a month now so it's annoying and difficult to break. What can I do? I don't have anyone to actually work with me, I can't get my round off anymore and I have not done any of the exercises or drills at this gym that I remember from when I used to tumble.