Cruz....I'm so sorry you're going through all this...it's totally sh!t!  I think that going out and getting a job could be the best thing for you right now.  Not only financially but mentally and emotionally.  It totally sucks that you've seen it so good with your hubby, with the right treatment, then he lets it fall apart.  That hope you had has been dashed....no wonder your exhausted by it. 

Look after yourself and you lil man....let you hubby look after himself.  Until he realises that his choice with the meds isn't working just let him be.  Save your energy for you, your son and looking for a job.

Good luck, Cruz!

Ker
xx