It's great you're exercising daily, aim to make it part of your daily routine, it'll pay off very well in the future.

When I was your age I had days and even weeks during my summer breaks when I would get bored out of my mind. Believe it or not there's some benefit in that. It allowed me to find new ways to entertain myself and definitely boosted/developed my creativity. Try to get bored every once in a while, it feels nice :)