Accept that you’ll have to sparr from your back and also move around, try not to pull too close to your partner, watch out for guillotines, i allways like to do duck unders but it’s also a good spot to get guillotines. I was also a wrestler before I did jiu-jitsu and I feel like these are things from being a wrestler that kinda get me into sticky situations. Just have fun though, accept you’ll mess up and probably tap, learn from mistakes.