Stop stressing yourself out, Sarah. You will get through this, because you must, especially if you have a child who depends on you. Be glad of those cuddles and be happy being a mum. There is no point to peer into a future that hasn't happened yet and won't for a long time. Just deal with the present and the current day and let tomorrow take care of itself. You are putting too much strain on yourself and that isn't necessary.
Try to treat yourself to at least one nice thing each day and instead of focussing on the bad things the future could hold, look for the small things that are good and to be grateful for in the day that you are living through. It was sunny today and the wind had stopped howling. I was grateful for that. A friend rang me and we had a nice chat. That brightened my day.
It's the little daily things that you need to focus on, Sarah. Tomorrow will come with whatever it holds, without us worrying about that in advance, so take the pressure off yourself.
Sending strength.