I tried several times when I was a teenager, but only managed to lick the glans once. I was forced to look for partners.
When I was able to do it, it was the weirdest feeling because I knew what it was like to suck a dick and what it was like to be sucked and... both sensations at the same time. I used my hands on my ass and shoving myself into my mouth until I came and, jeez, what an experience that was! I was able to blow myself for a couple of years before, well, inflexibility caught up with me. . I remember eventually telling my wife that I could give myself a blowjob and... she just rolled her eyes and mumbled something about men as she walked away. I never would have tried it until I found myself sitting on the edge of the bed and with a raging erection and I thought, "I should be able to suck myself!" Well, it wasn't that easy to do and I wasn't going to settle for just being able to lick the head of my dick or busting a nut all over my face; I wasn't going to be happy until I could actually suck myself and cum in my mouth and the way it's supposed to be.
Like many here when I was young and masturbated frequently I thought I would give it shot. At first lying on my bed I threw my legs over with my head on the pillow while I stroked and I couldn’t quite get there. I was close enough that I could lick the tip, and that being the case it seemed with a little stretching and practice I might get there. After several attempts and refining my technique by putting my toes under a board on the head board I could get about half the head in my mouth and swirl my tongue around it. Wow! What a feeling. Of course I shot my load and learned that swallowing was kind of a turn on. No wonder I wound up wanting to suck someone else’s.