Emily.
I've spent the last 12 months applying for jobs.
I've no disability, it's just hard. Each day I just get up again, and try again. It's all I can do sweetie. 2 or 3 applications a week, some reject by text, some by email, some just don't bother at all.
I'm not 'old' but I am experienced at a high level in my field, and have been on very groundbreaking work, in my other country. Except here in my new country, it's as if none of that counts at all. I've had extended days when the desire to cease, has been very high. I'm rejected because I'm too experienced, to old, too young, too qualified, I'd get too bored, the role is too junior, the list goes on. And on. And on.
I do understand, and we are listening, keep on loading images to shutter stock, and the other commercial sites. It takes time for a following to build.
Join some Facebook groups, that are with your interests, promote your work. Heck, if a single photo can be sold for $4 million US, there has to be some hope. Try some portrait work, get practiced with photoshop, use the rules to be your strengths to master and follow identical techniques, to push your results higher. Enter competitions, you never know what might happen (a friend did once, on a whim, and is now running photography classes and tours). All of this takes time - you have plenty, and I'm sure you can succeed.
(Hugs)
Rowan