For me, the thing about meditation was I could read all kinds of ways to do it, but when it came down to it, I just had to make myself sit and do it. I try to follow my breath.
The best thing I heard that helped me sit there for 15 or 20 minutes was this:
Your mind is like a puppy. It wants to go and play (meaning, it doesn't have the discipline to be free of thought). Don't scold the puppy when it does this, just bring the puppy back.
So, when I am meditating, and I find all of a sudden I've been thinking about what happened yesterday, or what I'm doing later, I just bring myself back to my breath without beating myself up that I'm bad at meditating.
As I do it more, it becomes easier to stay in my breath, similar to the way you have to train the puppy.