I’m a soon to be former fatty (just a few more lbs to go) who joined a gym a year and a half ago.
When I started, I could manage 10 minutes on the treadmill at a pretty slow speed. I thought people would notice that I was just there for a short time. Nobody did. I was nervous, too, but nobody even talked to me. I was most nervous changing and showering, but meh.
So start with what you can do and build on that. If it’s 10 min, then fine, make it 12 min next time and 15 min after that. When you feel like you can do more, try a class.
Get a trainer to show you weights. I wish I’d started weights earlier. I love them.
Get a GOOD sports bra and GOOD shoes. Other clothing is optional. Because I was Fatty McFat when I started, I had chub rub issues with my thighs and couldn’t wear shorts. I liked the 3/4 lycra pants and a big top - the pants kept things from giggling too much, the top hid a multitude of sins. The bra kept things where they belonged, too. I prefer working out in tight clothes because it gives me support, but I wear shorts and a loose shirt on top, or just shorts usually now.
I sweat like cow (and still do) so I wear a bandana or something to keep the sweat out of my eyes. Bring a towel!!
I have to go to the gym. I just have to. I’m out right now with bursitis for two weeks and I feel sluggish and craptastic. You can be this way, too. It just takes a bit. There’s no instant result.
I now when I’m not working and going to school full time do five or six days a week, with two of those being weights and the other two being spin classes or body combat. When I’m at uni and working, it drops to three days. I always go the morning I have final exams. It seems to put my brain on track.
It takes a lot of time to get to your goal, but it’s so worth it. Just go!