I've been feeling somewhat relieved, and even comforted to a degree, when I think about the fact that life is temporary and I'll be gone someday. I don't mean it in a sense that I'm looking forward to dying, though I did use to think that way at a point in my life in the past. The thought of death was actually welcoming to me at that point and I'm glad that I don't feel that way nearly as much anymore.
Its hard to put down what I'm thinking about, but I guess its more of in a sense that when I remember that my life is only for now it lets me take a step back and realize when I might be overthinking or overanalyzing a lot of things, and if I'm honest with myself most of the things I stress out about most likely won't matter at all in the long run and actually don't matter very much now. Its just that my mind or emotions usually makes them into a bigger deal than they actually are. That's not to say that just because I realize that fact that I can immediately stop the habit and be completely at peace with my thoughts and able to get "out of my own head" easily. I'm human and for whatever reason I'm the type of person who gets caught up, too caught up sometimes, in my own thoughts to the point that I consider it a flaw, but remembering that everything isn't a life or death situation, no matter how much it may seem like it to me in the heat of the moment, helps me.
It reminds me of how unimportant I really am too. That might sound almost self-deprecating, but its true that I'm only one person out of the billions of other people in the world and I'm just basically a spec in whatever "scheme" of things there might be. I'm really not likely to make any big kind of mark or ripple in the world, but that's alright with me.