I really love Divine's idea about exploring local things. If you haven't already, you might be surprised how much there is locally to see/do. It can be fun to look at your area as if you were a tourist, and to go see some things that you might normally overlook when you live in the area.

For further travel, I think it might help if you could get more specific. Like... is there somewhere specific you want to see, or something you want to do. "Travel" is just so general.

Depending on what you can do with your disability, you might look at things like house swaps (I've heard of this, never tried it), or a foreign language school where you stay with a local family (not sure if this is more or less expensive, but I'm thinking it might be helpful to have people there in case you need help for medical reasons?).

Also, there used to be a place (maybe in Spain, I think?) where you could go and stay for free, but in return would spend some of your time teaching English to locals who signed up for classes. I don't think you had to actually lead classes, I think (it's been awhile, my memory is fuzzy) that you just had to sit around and chat with people in English, so that they could practice their language skills.

Something like that might work? It should save some money, plus would give you people to talk to, so you're not totally on your own. I thought it was a neat idea, but it's been more than 10 years since I looked at it, and I don't have the website anymore - sorry.

Good luck!