If that's what you need to spend to stick with it, hire someone, full time. A lot of people would be happy to take that money to keep an eye on you, and hassle the hell out of you. I know I would.
Consider what would actually make you do something, then pay that person to do it.
To extend on what I've said above, exercise was not my thing at all. It took me time to find what I needed not only to start, but to stick at it. False starts a plenty, amongst boredom and apathy. Perfect now, no, far from it, but better, and that's better.
Consider what would actually make you do something, then pay that person to do it.