I'm stuck (and financially dependent) between a family that calls me delusional and a mindset that tells me to keep going. Also worth noting, I have a therapist

I'm stuck (and financially dependent) between a family that calls me delusional and a mindset that tells me to keep going. Also worth noting, I have a therapist I see weekly that assures me I'm not delusional. My question is this-- How do you keep going and not let the fire inside of you burn out when everyone around you is trying to put it out?