I think the only thing you should be nervous about is your wallet

. You're going to look awesome in new, smaller clothes! I don't know about you, but when I first started losing weight, I just got used to my clothes being big and baggy on me- it seemed like they still fit me fine, until I tried on smaller clothes that
actually fit me. I never really bought size 18 pants becuase I wore my 20s so long that my next pair of jeans were 16s. Go try stuff on- 50 lbs is a HUGE accomplisment! When I know I'm looking good, I feel so much better about myself and am so much more likely to stay on plan (and unfortunately, the oposite is true too). Have fun at the lake, live your life- focus on how much you've already achieved!