Need inspiration!!

I'm thinking of starting up on the Masters swim team here in Las Vegas, and I need some information/inspiration to get started. I have a goal of losing 30 pounds by the end of the year. Last year I lost 30 pounds and I have kept it off. I just need 30 more and I will have reached my ideal weight of 130 pounds. That is not my only reason for joining Masters swimming. My other reason is that I miss competing so much. I was on a swim team from the age of 7 to 18, and now I am 28 years old, and I find myself thinking about swimming all the time, and visualizing the races/meets/competition, etc. My problem is this: Whenever I start swimming without being on a team, I usually get bored and I stop swimming, and I pick up some other type of exercise like aerobics, running, etc. The last time I was on a swim team was 1993. So my question is this: Is it easier to stay motivated if I swim on a team? Thanks for any input. Take care, Beckie