I know how you feel about the gym Mandy, believe me. I have never joined one although when I first started losing weight I promised myself that when I lost the next 10 kilos I would but then I would lose the weight and say to myself not yet, I'll do it after the next 10 kilos. I now have 5 or so kilos to go and I still havent joined up for fear of being the fat, unfit one. I have got this far off my own back I figure I can do the rest on my own.
I guess what I am trying to say is weight loss-even big amounts (I had a lot more than you to lose) can be acheived without gyms and what not, my main exercise has been daily walking.
You are a braver women than I for joining up and I'm sure youll go great, perserverence and determination is what it takes.
Best of luck with it, Sue