7 months on Thursday

I cant believe Thursday it will be 7 months. Seems like just yesterday that I was in the hospital. I have lost 108 pounds and I have 45 more to go. These will be the hardest pounds to get off, but I am determined to do it. I feel so much better about myself. I am down from 3X to a 16/18 and I LOVE shopping now. Does anyone know how often you are supposed to go to the gym? I go about 4-5 times a week, not sure if thats too much or too little? Take care, Keep in touch Geraldine