Learning to breathe on both sides?

Hello, I'm excited to be here and excited to be back in the water again after about 12 years! I have numerous questions/things I'm excited to improve on so I thought I'd start with one: my whole life (so basically for 30 years) I've only been breathing on the right when I do freestyle. Any tips for breaking this habit and learning to breath on the left? I honestly can't even remember how I learned to breath on the right the first time around....I've just always only done it that way. I think I'm partly afraid if I just try it, I'll end up drinking the pool..plus it just doesn't feel natural. Thanks!