How not to Fall off a horse!

So when your on a horse the main thing to do so you don't fall off is hold on and have the girth tight enough. I have fallen of about 2 times. So the first time it had rained earlier that day and I went to ride for my lesson. Once I got on we did the usual warm up. After that we were trotting and he was acting kind of nervous and spooked when we came close to the puddles. So I went around again and he got spooked and no one knew he would do this he swerved to the side and I fell to the opposite side that he swerved. Then I got up and got back on to continue my lesson.

 The second time I was on the same horse and we were cantering and he likes to speed up while cantering. So he started to go really fast and I was trying to get him to slow down and I lost a stirrup. I then went out of the saddle and fell on my arm and side. I got up got back on and keep going. I felt my arm feel wet and I looked at my elbow and I had scraped my arm really bad. Those are my falls and I have some more fails but I'll tell y'all about it later. Bye Guys!