OP, I believe your situation is serious but manageable. Your main concern should be focusing intensely on wiping out that 30 grand in unsecured debt. If I were you I'd put any plans to move or buy new property on hold. You probably have not outgrown your house. Well, maybe you have, but you need to put any plan to move out on hold until you have the unsecured debt taken care of. Trust me, I know how you feel-- we live in a skinny two bedroom duplex and my 8 year old daughter shares a room with a 1 year old son, and they will continue to share a room for a few more years until we are ready to move. It's not ideal, but hey, they know that is the way it is! We have a kitchen eating area but no dining room, our bedroom is half cluttered office.. but we consider ourselves very lucky to live where we do! We're not moving until we can afford to own... and around here that means a huge downpayment, so we are still saving.
Also, your plan to sell the house and rent while you build... just don't forget, even if renting is cheap there, all that moving will cost money. Moving always costs. Staying put is much cheaper!
I just want to let you know you can fix this. We make a similar salary to you but we don't own, we rent (and pay more than your mortgage.) Five years ago we had credit card debt like you would not believe.... I mean really, we were one of those horror stories you read about in the newspaper. Much more than your debt (except the mortgage of course.) One day I just realized things had to change. We entered a debt management program that lowered my monthly interest rates and gave me one lump payment. In January I will be 100% debt free. Now it kills me to think about all the years we've paid on our debt when we could have been socking away house money... but now we're focused on the present and the future and despite the fact that I feel a little behind, not owning a house yet, I feel we are on the right track.
Debt management programs are a mixed bag... it isn't supposed to mess up your credit but it did for us, a little bit. We cancelled all our cards. Then we found we "needed" one for rental cars and "emergencies" and found we couldn't get one anymore. You know what? Best thing that happened to us, really. Because we all know about the so called credit card emergency... like buying plane tickets while the fare is low, or whatever. So we had no credit line. We had to learn to live with what we had. If we had to rent a car, we found one that took debit cards. Now our credit is fine and we do have a credit card we use for rewards... and pay it off every month, (actually I pay a couple times a week so I don't slip into bad habits.)
Something that helped me when we decided to shape up is just admitting we have no money to spend. Especially in NYC everyone spends, spends, travels, it is all consumption, all the time. I decided not to let my new frugality be a secret. When people asked us out to do things I said I didn't have the money. I made no secret of our penny pinching. It is very unfashionable to admit you can't afford something around here; most people are busy pretending they can afford the things they can't! I found it helped me to constantly admit I couldn't afford things. Probably tacky and made people uncomfortable, but it helped me remind myself not to pretend to be something I'm not.
About your Disney trips... I will say we took our very first Disney trip one year into our "new austerity." Previous family traveling had been haphazard and irresponsible, shoddily planned and often charged mostly on credit cards. After a few months of getting by on our new strict budget, I got the Disney itch. I thought, maybe if we do it right, plan way in advance, put a little away at a time, and get the whole thing paid off before leave, and budget and save properly for meals, etc. while we're there, we can make it work. And we did. It felt really great to enjoy our vacation without the credit guilt that had accompanied the indulgences we'd enjoyed in our "old life". Now if we had had "gazelle" intensity, that saved vacation money would have gone to pay off our debt that much faster... but I think for me, it helped to have something to look forward to. Now how this applies to your situation, I can't say... but maybe you can think postponing your trip(s) until you have made some real progress on changing your situation and habits?
I will say that while we had a seemingly unsurmountable debt, we have a few things going for us. Our rent isn't cheap, it is NYC after all, but it's hardly risen in 7 years (dream landlord.) What was once market rate is now almost a bargain. We don't own cars so don't have car payments, gas, auto insurance. (In fact sometimes when I am lamenting the horror of NYC rents I remember all the car expenses we'd have if we lived in the burbs.) DH is a journalist and I am a SAHM with a casual part-time job so we don't need to spend too much on clothes... we are "Gap" casual 98 percent of the time (actually more often "Old Navy" casual for me.) We don't have child care costs. Student loans were not too big, and we paid them off a few years ago.
We could do much better and save more. I'm still working on improving our habits and relapse occasionally. If I planned meals and shopped better I could drastically reduce the money we spend on quick food trips, take-out, etc.
Good luck. I really think if you can just put yourself on a program, keep a budget, and stick to it, you will be able to lick this. You just have to really want to do it. That's the hardest part.