How to heal quickly 😅

My partner and I are both doing IFS. He has free therapy but I don't go to one because either can't afford it. I know how to do the process and have unburdened a couple of parts.

We are both having such a hard time though. Our parts are constantly pushing back on one another but they aren't being unburdened yet. His therapist is taking him another direction and every time I try to unburden the big part, smaller ones sneak in. Our relationship is struggling and I'm afraid if we can't target this bigger parts soon, it will be irreparable.

Advice?