Dear bluebird95,
When I was very young, I married, without knowing it, a schizophrenic husband from abroad and had a baby and went abroad to his (third world) country.
In that poor country, resources and awareness for mental health problems was non existent. We lived there, together, for years until at some point, there was nothing's else left for me to try or give.
I took my young son and left. I think I understand pretty well what you are going throuh. In my case, I still feel very bad about abandoning this good man, but I know that this is what I needed to survive and give my son and my self a better life. I'm immensely grateful and happy that my son (now almost 28) doesn't show any signs of schizophrenia. I do, however, at times worry for any future children of my son that might have this cruel condition.
As a result of the very stressful and painful reality of schizophrenia, I have a PTSD and am currently working with a great therapist, undergoing an EMDR treatment.
I can't stop feeling guilty for not being able to help my ex husband. This is still affecting my life now.
I know I should never give you any advice, so I'm not going to do it, even if, honestly, I want to.
What I can say is this, I know that in my case, I made the best decision for MY SON AND MYSELF. Life now is thousandfold better, but I still deal with the emotional consequences of being there and living this reality for years, in a poor, foreign country, with no family or economic support.
Sometimes, we are faced with impossible choices and not choosing is still a choice.
Take care of your physical and emotional health, the best you can. This is not going to be selfish from your part. It's the logical and sensible thing to do.