Used to be the same way. Here is how you get past that. Dont think of it as work, think of it as a test of who you are. Think of new goals every workout, more reps, more weight, etc. You'll feel better when you start nailing these goals, take small steps though. Give it 3 months, I hated the first 3 months in the gym, then when people started saying all sorts of shit about how I was changing or growing I soaked it up like a sponge!! Then I enjoyed the gym. Now I'm a freak who cant stop, and cant go anyplace w/out a cooler of food, go figure, hahahah