It's great your husband believes in you. Hearing about your family makes ME want them to shut up. I can't imagine being oppressed by that all your life. Horrible. I had other abuse, and feel broken enough to feel like an incompetent human being myself, without anyone telling me that. The bottom line is what you think you can do. And please tell your family to shut up, at least if they invade your mind. What a bunch of jerks!! (If you don't mind me saying - their jerky behaviour.)

So what kind of job is it you hope to get? Obviously there are things where size can get in the way, and there is always social bias in some areas, but it all depends. Book learning does matter, and people who can't make the honour roll are free to sneer at it. You sound like me in some ways - age bracket, wanting to work (again), some barriers, a supportive husband, and same time zone. PM me if you feel like it.

Edit: And just want to add that many people are jerks, so if they're not at you for being fat, it's some other nonsense like too skinny or even too perfect.