>>1157551Find songs that are in the right key for your harmonica, fuck around to them. Seriously. Just figure out what sounds good for a while. It doesn't have to be a song with harmonica in it.
When you start getting used to it, Google "Ronnie Shellist", he has tons of good harmonica instructional videos on YouTube that I learned off of when I was in high school 10+ years ago. When you're comfortable with basic blowing and drawing (breathing in through the harmonica), look up "cross harp" which is a way to play harmonica in a different key that its labeled for blues music, done by "bending" notes by angling your tongue a certain way.
Sure it takes some practice, but compared to other instruments, it's really really easy to sound good at harmonica.