I can relate to you Xcastle, it's hard to get into it when you're right next to someone powering away next to you while you're struggling to do something else, sweating all over the place. You just have to stick with it though. Whenever I'm at the gym, I feel people are watching me and judging me and I try to use that as motivation - to prove them wrong as if they're thinking that I can't go for another minute, or that I can't go faster, lift that last rep. It's hard but worth it in the long run and people will notice the effort you put in and the changes that you make to your body.
Can't wait for my new gym to open, bring on September!
I have never seen a wild thing feel sorry for itself. A little bird will fall dead, frozen from a bough, without ever having felt sorry for itself.