Wow man, exact same situation for me (though it was my dad instead of my mom). I've had 0 help since college, and I paid for 1/2 of college while assuming all of the debt.
But I also wouldn't expect any help after college - I'm an adult now, and need to handle it myself.
Seek out support from friends and family you trust, even if its simply emotional support. I had no one to turn to, so even though I've carried on each day, I'm slowly turning into a nihilist. Don't be like me.
But I also wouldn't expect any help after college - I'm an adult now, and need to handle it myself.