You don't need a kick in the ass 
You need to be encouraged to take something UP - not give something up.
So - 'Take up' making one corner of your home nice for you - buy nice bath smellies and take a bath, buy nice bed linen and make up your bed, take one tiny corner (like your bedside cabinet or your make-up drawer, or your smellies cupboard) and clean it.
'Take up' an exercise you like - don't join something you hate - so, walking with a friend, zumba - whatever floats your particular boat.
PEOPLE ARE HAPPY WHO DO THINGS THAT MAKE THEM HAPPY - my life is content when I am busy and enjoyably occupied not when I've decided on some nutty diet or joining a gym.
So, 'take up' an evening class - a pottery class will function just as well on one level as Weight Watchers - it takes you away from the fridge at night
, it makes you feel happier and more inclined to self-nurture.
You need to find what makes your boat float - one of the things I'm really enjoying (it may not be your sort of thing) is couch to 5k - there's loads of threads on that - I've been practically euphorically happy since starting it.
Kicks in asses rarely work - frankly, it just joins the already self-critical voice telling you that you're too fat/you're house is a mess etc etc