The only thing I can
motivate with negative consequences is negative actions? Yes, fear can get me to do things (pay my rent/mortgage or get thrown out of my home :-) but rather than think of it as negative motivation, I look at it as a goal or positive outcome; I'm buying my house; I'm taking responsibility for myself and have a roof over my head (now all I need is food and clothing :-)
What do you really want? If you want it, you will go after it. If it is a chore, like doing dishes, cleaning bathrooms, etc. I don't know about you but I like having clean dishes to put my food on and a bathroom that does not stink of wet moldy towels or isn't a mess or dirty. The house I'm in, that we bought in 2005, the whole place was "flipped"; the original owner, an old lady, died. The people who flipped it had problems and the guy who did or supervised most of the work was probably a drunkard. Anyway, there's very faint vomit stains on the "freshly" painted wall opposite the toilet in the bathroom

(why I think it was the drunken flipper guy). One of these days I'll "want" to scrub those off?
What you want is what you want. It's great for others, our spouses, etc. to tell us they want to eat dinner at 6:00 and then they go sit at the table, waiting for their dinner to magically appear

If you want the trash taken out, you ask someone nicely if they would please take the trash out. If they do not take the trash out quite as fast as you'd like, you take it out and next time you ask if they'd please take the trash out right now, it is overflowing and in your way making their dinner. . .
We are all responsible for getting what we want. It's easy to make excuses for why we don't have what we want or think we should want or what others want for us but the answer is we don't really want it is why we don't have it.
I just remind myself I can take the trash out and have the man of my dreams providing me a home I love or I can take the trash out and be all alone, poor, lonely, and struggling to live. Either way, if I want the trash to be taken out, that's what I want and is my responsibility to get for myself. Everything is a choice and it is up to you to make the choices that are good for you, what you want.