I don’t think it’s entirely healthy to have our whole identities wrapped up around our kids and husbands. Kids do move away. The world doesn’t end with it. Just go enjoy yourself. You can visit kids out of state.
Take the car out of the garage if it’s not being driven and put yours there. Tow the one that just sits there
Give him 30 days to move stuff out. If it’s still there in 30 days, bring a big truck, load stuff and take all that clutter to Salvation Army.
Take charge. You don’t need him to take charge especially if he doesn’t seem to care one way or the other. You can get stuff done yourself