Losing interest in the hobby

Have had the same problem many times in the last 30 years.
Told myself never again more times than I can count, but you never get it out it,s in the blood every time I hear a mopar roar to life it brings it all back.
Been on the last project for nine months now almost complete told myself this is the last one.
Wife keeps throwing the b/s flag when I say it.
Besides we all get tired of the hobby from time to time but like I said it's in the blood .