Do I still have room to improve in my 800m?

I've swam most of my life. This was my senior year I didn't track for the first time and went 2:08.5 at my first meet and 1 month later went 2:02.80 in my 800 at the regional meet and 52.9 in my 400 on a relay.I got a knee injury so I wasn't able to run most of the season and only got to train for about a month. I'm walking on to a D2 college team and was wondering do you think I have a lot of room to approve and what are some workouts I can do this summer.