Depression Support Group
Depression is a real and debilitating condition that is often misunderstood by family and friends. Its meaning can range from a prolonged period of sadness to an actual mental illness with specific symptoms. Find and share experiences with others who are going through the same struggles.
You have accomplished so much and now it seems like one mistake is getting in your way.
I think I would try to include the misdemeanor in the application with an explanation, at least that way you can feel honest and not have to defend against anyone finding out later. I think you will feel better.
Apply for another job, no not just one apply for several. Don't just try again beat this problem's ass. Apply for ten jobs.
You know you can do this, you have managed to excel in education while being a single parent, that is recommendation enough.
Do not let one mistake when you were 18 define you.
I really hope you get back to going for your goal - getting that new job.
All the best.