Being comfortable in a bathing suit is a mindset.
The main thing to remember is that all those people, whether at the beach, the pool, the water park, or wherever, really don't care that you don't look like you did when you were in your twenties. They didn't even know you.
As a matter of fact, they don't really care how you look today.
Can I repeat that? They don't care!
Most likely, they are too busy worrying about what people are thinking of their own problem areas. Or, the best kind of people, are just having fun and enjoying the moment. That's the type of person I strive to be when I'm out there in my skin-exposing bikini.
Think about strangers you see in bathing suits. Are you really thinking, Her hips are HUGE!! or Holy Moly! I can't believe the belly on her!! I mean, really. It's not as bad as you think it is in your head. You can either sit on a lounge chair and judge and critique other people to make yourself feel better, or you can get in the water and play and enjoy yourself.
And if you have to compare yourself, only think about the awesome things you have going for you. If you have really great feet, go ahead and notice all the ugly feet out there. If you have the best bathing suit getup going on around the pool, own it.
Think about all the guys out there, with their beer bellies and hairy backs. Do any of them seem to care? Noooo! And I'm going to bet you look better than any of those guys.
Don't play the mind games. You can tell when people are not obsessing with how they look. They are the ones having a good time.
Be proud of your body. It does wonderful things. It takes you where you want to go and allows you to do things for yourself and others. If you're a mom, it has given life, and that's pretty awesome. And don't you think in ten years, you'll think the body you have today is youthful? You'll wish you had today's body, so enjoy it now!
Now go get those bathing suits on with confidence, and go have a great summer!