The fact is that you only earned 5 months of income. If you had earned 12 months of income, you would arguably be in better financial shape right now. Perhaps in one year, if you continue to earn at the same rate, a lower support amount would be appropriate.

I assume that you will be requesting child support for the 19 weeks that he has been unhelpful.

Haha this comes to mind:

Perhaps this therapist would also be willing to say:

Can we agree that you pay child support as the law, morality, and common decency require?

Ex has been very hard on you. You might want to let him know that you can play hardball too. Asking for whatever the law entitles you to in child support would be a way to do that. It might make him think twice about being so hard on you. It also would be a negotiating tool in that you could agree to reduce it in return for something you might want from him in the ongoing negotiations.

What does your attorney say?