Nervous fat lad looking for first time

I’m 26 and weigh 24 stone. I’ve been wanting to come to 52 for months now but keep chickening out, mostly because of my size. I prefer guys aged 18 to 40-ish, body types anywhere from skinny to slightly chubby. Could use some encouragement – wouldn’t mind having a friend to go with and learn the ropes – ask for my Snapchat. To any bigger guys reading this, what are your experiences like?