18 months out of abusive marriage. Don't want to go into it. But his words against mine type thing. Makes no difference in divorce.
What helped me was:
-counselling: not to analyse the whys and hows of my situation because I was already doing a lot of that by myself, but to build myself up. I knew I was weak within the marriage (ie had no voice even when I tried), I worked with the counsellor a lot on my confidence and self-esteem and validating that indeed what was going on was plain wrong and crazy-making. Not to challenge it so much as to stop myself from going crazy.
- making a plan in my head initially. Then in RL. Practical things. How could I do it? How much money? What paperwork? Which solicitors? And so on. That kept me going, because even though awful things were happening at home at least I knew in my heart that I was making progress.
You can't fix it. I spent nearly 2 years hoping I could before my ex's behaviour slowly worsened and I realised it wasn't going to happen. If you challenge him in the slightest (and writing a letter about being happier will be seen as a challenge to his authority) he will tighten the screw. Sorry, but he will. Maybe not straightaway but he will. You know that yourself on some level. He will make you look crazy regardless.
Goddess is right. If you do not record what your h is doing now it will make it harder for you to leave.
I suppose what I'm trying to say is that recognising his behaviour is one thing but after a while, cataloguing it and analysing it isn't going to help you. Sure keep a record but try to detach. All he does is along the same lines. Nothing original. He's a shit. End of. Focus on yourself and what you can do. Even little things to start with, but make a plan. Sorry if it sounds harsh.
I too thought my young DCs didn't pick up on things as they never witnessed what happened. Well, my eldest probably picked up on things regardless. Currently having some support himself. Also as your DCs grow up and become their own little people ie don't conform to what your H's view of what things should be, your h will want that crushed, and will expect you to help him. What will you do then? It was starting to happen with my eldest but I was so caught up trying to deflect things coming my way I don't think I realised.
Your children sound younger than mine were when my marriage ended. 18 months on, I wish I had left earlier. If you have money find a really good solicitor who knows about domestic abuse and violence. You absolutely need that because this is what it is. My exh is essentially a violent thug in an expensive suit. So is your H.