You'll get lots of tips and ideas here, as well as support.
It's good that you go to the gym, even if it is only a few days out of the week, because at least you are going. Starting slow is better than no start at all.
On days that I know I don't want to hit the gym or do any sort or work out, I always ask myself...Why not? "Okay it's not hard to walk to the car." Once in the car.. "Okay.. five minute drive to the gym... no biggie" And poof... I'm at the gym and I may as well go inside. It's all about little steps.
Anyways, once you find your motivation, you won't be able to wait to get to the gym. Good luck!