After you take some time off and come back, perhaps set new goals. Maybe you are not just burned out but also bored and not getting challenged enough. The things you mentioned all sound like chores, not really projects one would be happy to get into. Also, you got cash + crypto investments but no other kind of investment? Maybe try to look into that as well.
As for regular sex, you either need to get your body in order. Gym, nutrition, quality sleep, nice clothes, perhaps some "thicker" shoes too... If you hunt online, learn to take better pics or hire a photographer. If you are not in top 10% looks-wise but can carry a good conversation in person, cancel all online tactics and try finding women IRL only.
Or, you can also just order "takeout". Statistically relationship offers the most sex, but in practice, that is nothing to write home about, because they included swaths of guys in those polls who are not getting any and compared with to people in LTR who get "some". If all that sounds like not worth your effort and you want to instead use that energy to just make more money and build a business empire, all the more power to you for being a smarter man. Now for the most important lesson, if you do decide to chase or "rent": You wouldn't want to risk half of your hard-earned wealth, wouldn't you? So wrap it up and dispose it out of her reach. Also: no cohabitating with crazy people, and they are all crazy.