The problem is that in the past year and a half, since he had severe raging that was witnessed by friends, we see almost no one
You can ask these friends if they would write an affidavit to what they witnessed. You can also gather your thoughts and write down all the reasons why you stayed with him despite his rages. If the reason he is home all day and not working is due to his drinking, make sure you state that as well.
It really comes down to your word vs his word especially when you don’t have written facts or police reports or eye witnesses.
I think the more facts with dates and times you could provide a judge on the incidents might help your case.