I recorded a brief tutorial on how to play “Realize” by Colbie Caillat, shown below. It’s honestly the easiest song you could ever learn to play and sing. The right hand plays the same notes THE ENTIRE SONG (I spice it up a little when I play it, and the left hand has 6 different notes it plays, usually only using 4 in any given pattern.
Then I recorded my hands performing it so you can see exactly what I do with my hands and also hear/see it in action. The only thing I really do that might be considered difficult is that I syncopate my left hand a little bit. It’s totally doable. Give it a try, and tell me how it goes!