There is no point in staying with someone like this. He will only change if he voluntarily goes to counseling because he wants to, not because you are asking him to.
You’re right. You need serious help. You are in a very, very dangerous situation. At some point he may well lose his temper to the point that he will hurt you even more seriously.
You need the practical help and emotional support of a women’s protective service. I did a quick web search and found this women’s center in your country. If they are too far away, they will be able to refer you to a service that is closer to where you live.
Do not use your home computer or your own phone to contact them. A man like this is often enraged when his wife seeks help. You could get seriously hurt if he discovers you are taking steps toward leaving.
Get out. Get out now. Get out so that you can have a better life and so that your children understand through your actions that this kind of relationship is simply not okay. You deserve better. Your children deserve better.
I wish you well.