I don't have experience with this, so take it with a big grain of salt...really more of a question...would waiving your right to future spousal support in exchange for his waiving his right to future spousal support negate the responsibility to pay him now?
You are getting by at this point, and seem to feel confident in your ability to find work in the future (which is awesome for you!), so maybe if you both waive the right neither of you would have to pay anything to the other now? Just go your separate ways & be done?
Not sure...just thought I'd throw it out there.