Advice losing weight

Preface to I take replacement steroids for adrenal insufficiency and I think this is contributing combined with extreme life stress but….

I am extremely active, I eat mostly healthy although I struggle to consume enough calories during the day.

My mom body is really starting to get to me and I’m wanting help on how to improve

I have a 4 year old asd kiddo that’s super hyperactive. Single parent

I own my own biz (cookie company)

I used to hike but drs said to stop until I get my spine fused and that’s when I noticed weight/ gut getting larger as I stopped hiking.

I average about 10-15 miles a week walking.

Looking for tips - my lower spine needs te be fused and working on core with PT

I’m in therapy to help cope with stress but honestly things are so bad there’s not much to do beyond take it day by day. I have very little down time