How can I gain my energy back?

I have been drained of energy for a long time due to certain events in my life.For starters there are some physical issues like I have anemia (not enough red cells in my blood,witch causes fatigue and wish to sleep more often).Also there is th
overpowering feeling of exhaustion after sport or dance (also feeling that I will do something that will cause injury)
I need to eat something that very second because I am shaky and unstable and I feel like every cell in my body scrims for food.Also my weight is always few kilos under what it should be.
There is also issue about unstable family that have worn me out through years with abusive behavior.Not physically but
emotionally, in few words I can never feel at ease when I am at home.I am aware that it would be for the best to move out and that will be done in a few months.
I am NOT looking for some mystic technique from east, just food recommendations or activities that can gradually help me gain my health again.
Thank you!