Very well said! I am so sorry for your loss!

But I do think this is exactly the point...
...and there it is straight from the horse's mouth. OP, you *need* these vacations so badly because you have been stressed for YEARS. I think all anyone is trying to say is that you can keep tossing a bandaid on the issue (taking spendy vacations to get away from it all/make the happy memories you can't seem to make in your stressful home) or you can solve the root of your problem which is the student loans so you don't have anything to run from anymore.
Do you have a budget? Not just an idea of where money goes every month but an honest to goodness this is where my money is going to go for the next 10 years budget. I don't know how comfortable you would be with this, but in many cases the only way for people to give you great advise it to actually understand what your particular situation is. That means divulging mortgage information, loan payments, utility bills and "extras" such as cable, phone, gym memberships etc. My favourite so far has been
http://www.reddit.com/r/personalfinance - you could start an annoymous profile there or go find an old school financial advisor to help you if you are able to really figure out your situation TODAY (trying to count eggs before they are hatched just adds to the stress - the more in control you feel now, the better you will feel about what you need in a job/commute).
You have a house, a husband, beautiful children and some great family vacations already - I am certain you can find even a little to go towards loans at this point in your life. There is no miracle cure however, it literally is taking money from SOMETHING to pay for this thing. If it *can't* be vacations, then you need to find something you CAN live without. Sell the car and buy a beater, kill the cable, find a way to cook cheaper meals, stay at home when you aren't on vacation, buy fewer clothes, pack your husband's lunch, etc etc.
And for goodness sake, 35 minutes when you live so rurally is NOT bad at all. I live in a large city and it takes me almost an hour each way. I hate it, but I do it because bills must be paid.
With three kids though it really may not be doable outside of the home anyway. Could you set up a home office of some sort and try to do phone support for a company or be a
travel agent, or something like that? Are you crafty so you could make something to sell on Etsy? Could you take one trip to the closest city once a week and try your hand at picking up old cheap furniture from garage sales and refurbishing them? Sanding and painting a chest of drawers can improve an items' value a ton!
At the very least, without knowing a thing about you I'm sorry I don't, get an exercise routine if you don't have one already. You sound exhausted so it's going to be a pain in the *** to say the least, but it DOES help. Try some yoga, play with some 3lb weights, go for a short jog, anything. The endorphins are cheery little buggers so if you can do any of the above to feel like your loans aren't a complete dead weight on your shoulders AND treat yo'self to a little self love (exercise is proven to help mild blues) you might not need those vacations as much as you used to.