I think what you really wanted to ask, and what most people have answered is "What should I do?". As I think back to college days, I suspect that what I would do is not the best choice for you or anyone.
As everyone else says, you should concentrate on School. Of course, dropping FIRST will not really be easy for you. Whether you're able to go or not, don't plan on doing anything else on championship weekend except watching. It's never easy to leave the things we care about. Balancing FIRST, work/school, and family time is a challenge for every participant I've known.
I'd recommend taking this year as an oppurtunity to volunteer at a regional, provide occassional advice to new teams in your area, or other non-team but vital service to FIRST at a level that your academics can afford. Lots of us have found that helping out on those years we're without a team can be a lot of fun.
Your team may actually grow stronger by letting a developing leader fill your shoes while you are still relatively accessible for questions and advice.