periodically banish extraneous musings from my mind

I think this goes hand-in-hand with worrying a lot. I wonder about so many things, and it just can’t be healthy. It seems that every time I have a free moment to myself (driving, showering, falling asleep, cooking..) I start to wander off in my mind. I seriously imagine some of the craziest things, and some things that are possible, and some things that have happened before, and some that will NEVER happen. I can’t even really begin to explain.