Is it right to feel guilt? Could I of done better? Am I useless?

Recently we started playing touch at pe, we got into groups and vsed each other, I'm ain't good at touch but I'm fast, so we started and the one rule was that only girls are allowed to score. I got handed the ball many times, twice i forgot the rules and ped forward, making mistakes like these made he so mad at myself for being so useless and untrustworthy. The score was zero to zero no one scored but I felt that it was us girls fault for not stepping up, it makes me feel so useless when we got all the sporty guys in our team and not one of us girls scored. If it was the guys they would have gotten more then 10 trys. I have to admit, touch is not my sport, netball, hockey and swimming was more of me. But the guilt is so great that I have cried twice over this. I could see they aren't blaming us but to see them sitting there thinking that THEY themselves could of done better makes me feel terrible and in the way of the game. Of course there was more sporty girls but they weren't playing in our team, should i be feeling this guilty? could i of done better in the game?