Sharon, i am also a mother, of 5 children (single as well) I do suffer from generalized anxiety disorder, and depression. It was against all of who I am but i take a medication called effexor xr 75 mg. It helps balance me enough to live a somewhat normal life. I'm def not happy about it but its what i need to do so my kids can be happy and be raised the way they need to be.
I have thought of giving up financially as well, but i got myself a decent job as a server at the cheesecake factory, i make close to 800 a week cash working 5 1/2 days. There are so many ways to get around the hells of being a single mom, DONT FORGET TO ASK FOR HELP!!!! I'm here for you if you need to talk, talking is what gets the anxiety out!!!!! The anxiety and misguided imagination may be what's making you think you don't want to raise your son, I wouldn't do anything silly until you seek help wether it be therapy medication or anything else.
I hope I can be of some help!!!!
Michelle