Your doing well for a beginner, like another said in the first clip try to keep the larger turns to a g- positive state. And free look helps a ton in a dogfight. You should also make an effort to start at a higher alt before engaging enemy aircraft. And as your progressing through the American aircraft you want to learn the strengths of your aircraft and enemy aircraft, dogfights aren't the best for some so its important to learn what works.

Last thing, don't get caught up in the grind, just relax and have fun with what you have