First, can you consider going with your mom even if you have to pay her way? Not sure of her health, but she can use a
scooter or wheelchair. You may have to take it slower and do less thrill rides, but it still would be a great way to bond with her. You could also do this with friends or cousins or neices or nephews.
Keep in touch with others on the phone; so, you don't feel lonely. I wouldn't talk about Disney, but I would chat with them. Call a friend or relative. This is particularly good when you are alone in your room. Bring a book to read and during dull moments read some. I'm bringing my i-pad on my next trip and I'll take it to the parks.
I'll go during free dining and I'll eat the cost of the room (I would be paying for a room anyway going solo); so, someone can join me more affordably. This can make it easier for someone to join you. I would go as far as paying someone's way if I felt it would be beneficial to both of us. You would eat the cost of park tickets and airfare in this scenario. In your case as a teacher it might be more difficult to do free dining.
I'm not young and my hubby is 17 years older and he will go with me sometimes to Disney, but he'll use a scooter, take naps, and do some park activities but not a full day's worth of Disney parks. I'm satisfied; because, we are with each other some of the time. Even if it's just for meals. Make it easy for hubby to join you. Also, see if there is anything else your hubby would do in Orlando that interests him and give him a day of his own fun. You can even go fishing nearby. Golf is an obvious one. This might make him more cooperative joining you there.
Join the organization D-23 and go to some of their functions. I think there was a recent get together at Disney World; I'm sure there will be more. These folks are very serious about Disney parks and such. I'm considering this avenue myself. I did a Disney meet which was sponsored by different Disney websites one year (doesn't happen anymore) and met up with two other women that I enjoyed the parks with and ate some meals with them, too.
I've done one Disney solo trip and I wanted to try it out. I would do it again. I talked with others in ride lines, too. I talked with others during parade and firework times. I even talked to a few diners. Coral Reef restaurant on the lower floor by the tank really have tables close together. I just struck up a conversation with a couple next to me. There are times this can be awkward and if someone doesn't want to be friendly then you have to move on. I find seniors travelling alone (they have annual passes and are locals) love talking to anyone. I found a world war two vet once and talked with him for at least a half hour. He loved the Voices of Liberty at Epcot and he almost saw them everyday.
You have to find your way if you want to keep doing Disney. I have a friend who has done many trips alone everywhere; his wife can't do it. He's been at it for probably 20 years with trips alone. He's very good at striking up conversations with anyone and he fairs well doing these trips (even Europe). I can't get on his level, but he does a good job enjoying himself every where. He will admit though at times it can get lonely.
Do some special Disney tours (behind the scenes tours) where you will be part of a small group. Even if you don't talk too much to one another you don't feel as alone being in a group. I loved the Disney Imagineer lunch experience at Hollywood Brown Derby. I've been thinking about doing that one again.
I really feel Disney World is a lot easier to strike up conversations with strangers. You have to decide if staying home is better or doing a trip alone will work. Some days, I liked the idea that I wasn't responsible for anyone, but myself.
Good luck.