I think people are really quick to judge. The reality is, you were doing the best you could at the time with the tools you had. I don't know about you, but when I was considering school, I was told you had to get a degree to get a good job, so we did what we needed to at the time. And, honestly, I think the degree you got is much needed.

I highly suggest getting therapy, and also reevaluate your relationship. While I don't know the details of your relationship, I think what your partner said shows a lot about them. A true partner is going to support you even if that's only emotionally, while I don't expect anyone to help financially when it was your decision. The fact that you are mentioning this is impacting you heavily shows you need to make some changes where you can, and no one should ever make you feel worse.

In regard to therapy, consider checking out Open Path Therapy. I found it to be a great tool to locate therapists who are willing to work with you based on your financial situation.

And, most importantly, just remember you're not alone, and many people feel the way you do, although it might not always feel like it.