struggling with life

I dont really know what i want from this, a vent, advice not sure. But here it goes. Sorry if this gets long.

Im struggling with life. I dont know what else to do.
My husband, for our entire relationship, has struggled to find work. When he does, he gets made redundant or let go during the probation reveiw. He gotten praises from his previous managers. One job he got made redundant a week after being promoted! He trys very hard to find work, chases his applications, follows up with emails/phone calls, attends all his job network appointments with a minimum 40 job applications (he only needs 10).
He is studying this year to try and get more skills to get work. Im chronically ill and find it hard to work but im going to University to also get more skills and find work. We also have a nearly 2 year old son.
We are struggling financially. We struggle to keep our heads above water. Our rent is the first thing we pay and we are on payment plans for our other bills. We barely have enough money for food. We dont go out, dont eat out, we dont do anything, unless its free (eg going to the park).
Im sick to death of struggling and i just cant handle it anymore. Im not depressed or anything like that. Ive spoken to my doctor about this. But i cant handle my life. I feel so guilty for feeling this way. Especially because of my son. I want to give him an awesome life and i feel like im failing him