I think the telephone counselling for a crisis is actually better and more helpful than you’d expect FYI.
I left my husband when my only child, a boy, was 2.5 years old. I felt like you and now my son is 8 and thriving & we are better off. We have minimal support - I promise that it can be okay.
At the moment you’re in shock that your child won’t have the ideal family situation. However it’s not as bad as what you’re imagining.
Children are resilient and it’s how we manage the situation and protect them as adults.
If you maintain routine, love, cuddles, and explain to your son in an age appropriate way that you won’t be living with daddy but that Daddy will still see him and loves him & you are still a family, I promise it will be okay.
There have been times my son has questioned why I’m not with his Dad. On a daily basis though it’s not a big deal. What is a big deal is when he’s witnessed arguments.
Your goals is to shelter your son as much as possible from arguments, your emotions and keep things as regular and secure as possible. Your immediate thought in all of this is for your son which tells me that you’re a wonderful Mother and selfless.
Hating yourself is going to break you down and that’s not going to help your son and you. It’s you and him now so you have to protect yourself and build yourself up.
Also, relationships sometimes don’t work out, that’s not a failure, that’s just a life event that’s unfortunate and happens to many many people. It’s not your decision to end this and it’s not your job to be perfect and you can’t control him, nor can you perfectionise your relationship and yourself so he stays.
This is not your fault.
Your son’s life isn’t going to be perfect and it’s not going to be ideal but it can still be wonderful, loving, safe and a happy childhood.
please feel free to message me - I worry reading repeated comments that you hate yourself.
I promise you that life can be okay again & you must believe that for yourself and your son.
Twenty years is a long time and you’re in shock and grief so feeling really low right now is normal but these views and worries you have for your future without your husband are probably more intense than what they should be. Everything can be fine.
Make yourself a cup of tea, prioritise yourself, get in with a good counsellor immediately !!