You wanting your soon to be ex to support you through this, goes a bit against logic. If he’s an abuser, how are you seeking support from abusers.

Plus…

If you weren’t married to a man who doesn’t equally contribute, wastes money on frivolous things, isn’t reliable etc, you’d possibly not be in this situation to begin with

If you had a peaceful home life, you’d be able to devote energy into getting better at work tasks. Instead you had to deal with marital problems

I’d your husband didn’t have credit and money problems, you maybe wouldn’t have to work stressful high pay jobs that perhaps don’t match your skill set. You’d be able to maybe have reduced work load and less stressful job

If your husband didn’t waste money on nonsense, including drugs, and didn’t expect and encourage expensive unnecessary purchases, you’d be able to save enough to live 6 months with no income (maybe just unemployment). It’s recommended to have enough saved to manage at least few months .

If he wasn’t a cheating unreliable jerk, you’d not be divorcing. You can’t ask him to support you in something that he created. I understand seeking support in a neutral situation that he’s not at fault, like illness in the family, but not in all this

Your husband is partially at fault for creating situations you deal with. Seeking support from him is pointless