What to do as an Aspiring Architect?

Recently I feel like I've been wasting a lot of time this summer with regards to my major goal in life: becoming an architect. I am going to be a senior in highschool and I was wondering if anyone with experience tell me something I can do that will prepare me better. Like developing skills or something, i just feel like I'm wasting an oppertunity to become better. I am already doing a decent amount of studying for AP classes this summer and I'm registered for the architecture class for next school year. Any excersises, reading material, things to get my thoughts rolling about architecture. Thanks, I'm aware this probally sounds really lame.