You are great for a rec. player but since you are looking for being collage player, you really have to improve on crucial basics. As an example, your footwork is weak. You are getting easy and high bouncing balls in those videos generally and even at those balls your "stepping" looking rough. There are few balls which came short or low bouncing and you looked clueless when you're hitting them. So, my biggest advice for you: work on your footwork and movement. It's really crucial on modern tennis. You can't win matches just hitting strong serves and hard balls.
I liked your forehand and backhand. Your strokes seems effortless, strong and beatiful. But i want to see more down the line backhand, it seems like that you like to use your forehand and it's your weapon. Your backhand is consistent though. First serve is really good. I can't say anything about your volleying since they were just a few in these videos.
Overall, you are not bad at all. It would be better to watch your playing against a good player. In that second video, your opponent was playing very bad. Just like me.
I am wishing best luck for you. Hopefully you can find a good school to play in US collage tennis. Keep hardworking.