Sometimes it's not picking on someone.
It's trying to help someone "face facts."
The fact is the OP has been living extremely frugally in order to afford vacations while letting a debt sit on the back burner. If the budget is so tight that she has to leave a debt sit (cannot make minimum payments) in order to take vacations, then she really can't afford them. At least not all of them.
I have all the compassion in the world for the OP. I've been there. I'm still there. Our budget is so tight it squeaks, but we are not putting our debts on the back burner while taking pricey trips. (And, yes, for me, a Disney vacation is a pricey vacation.)
We've taken 2 (value)
Disney vacations in 16 years of marriage. They were the most expensive vacations we have taken and we were eating from our room two meals a day during the second one. Our kids got "the dream," but they also got a stable home. The OPs situation does not sound stable or sustainable.
This year we took no vacation, not even a trip to visit family, because we had unexpected medical debt and we needed to make that our priority. We had the option of making small ($20/month) payments on these bills at 0% interest, we could have drug this out for years and still taken vacations, etc. But we have learned the hard way that spreading out the pain is NOT painless; and it's still, in reality, "living beyond our means".
Instead we are using every spare penny (including vacation and a good portion of the entertainment budget) to pay it off. So, next year, we can breathe easier, and maybe take a vacation "debt free" (honesty compells me to admit we will still have our mortgage

).
Obviously, we have no idea how big these loans are. But 20 hours a week at a minimum wage job (evenings and weekends) would bring in around $450-$500 a month after taxes. That's a nice sized loan payment. Two full time day care kids would bring in $650-$700 a month after taxes.
And it may even be possible to do both of these jobs! It may take months of searching to find the right fit, it may not be quite 20 hours at first, or you may only have one day care kid in the beginning, but every little bit helps and you could keep looking for something better.
Between two jobs of this type, she could add up to $1,100 a month to their budget! Now add in a few years without the cheap Disney Vacations. Let's say she budgets $2,000 for those. That's another $160/month which could go toward the loan during her non-vacation years.
Here is the thing that I've learned over the years: You might feel great during that one week vacation where you let the stress in your life go, but you are coming home to the same stress filled situation. Actually, a worse situation, because the debt is growing instead of shrinking.
Okay, I wrote a novel. Sorry. But because I have been there, done that - because I am still always weighing the options and studying our budget - It really pulls at my heart to hear from others who are struggling. I am only trying to help. Trying to pump up the OP to
find her solution. Because a solution is there. She does have options. It's not hopeless.
OP - I know I was pulling figures out of my @$$, but I really think you can do this. And the sooner, the better. Get your name out there, apply everywhere for evening and weekend work. Advertise for some day care kids, advertise to clean homes. Anything and everything you are qualified for. Maybe you have an option that relates to your degree?
Apply every spare penny you can to the loan, even gift money from family. The more you can do, the quicker you can eliminate this stress in your life. And when it's gone, you can decide where you want to go from there. Keep the jobs and put that money toward vacations, retirement, school funds for the kids. Start looking for jobs that you find more fulfilling or go back to being an at-home mom stress free.
But, your first step is just to take that step (okay, maybe it's a leap

).
Good Luck!!