Mistakes made with the English pronouns I and me have been increasing exponentially for years. The difference is actually very simple - let me explain it to you.
Me, myself, and I may refer to the same person, but they are not interchangeable. Myself should be the one you hear the least, but it's often used incorrectly in place of me.
Between you and me, the phrase "between you and I" grates on my ears like nails on a chalkboard. I hear the wrong version about 3 times as often as I hear it said the right way, so let's get this straightened out once and for all.