Sorry to hear that you have been having a rough time.
Have you thought about working out at home using Youtube videos? That's what I do and it works well for me. I especially enjoy FitnessBlender and Leslie Sansone, but there are many options out there. Even just a short workout can make a big difference in mood. Also, this takes away the pressure of having to go out to the gym, and the financial stress of a gym membership.