I am pretty new also. I started earlier in Dec. I am so far really liking Fitday. In fact, I purchased the Premium Membership after about 2 weeks, just to get faster logging times (fewer/no ads).
It's great that you can go to the gym and that you like the classes. Personally I don't have much difficulty with the exercise part, as I have a few different activities that I like to do. It's the food that gets me. I am finding that logging my food is working really well for me right now. Plus there was a support forum for getting through the holidays.
I don't have any suggestions for logging the food that other people cook. Other than that single ingredient foods are obviously easier.