I used to be very active. I worked out everyday with little to no rest days and had a calorie deficit I followed. Now I can hardly do anything for 30 minutes because I’ve let myself go and I keep thinking I can just get back into it but it’s hard. I feel unmotivated and when I tried to take a walk earlier my back ached so badly that I could hardly make it to a place just a block away. I used to walk for 2 hours with ease. I feel so useless and ashamed. I don’t know how I can get back into my routine without giving up, if there’s any advice I’d take it.