Imho it's perfectly valid to have your goal to be a lifestyle sub 24/7, but you do have to accept the fact that most partners who are willing to lifestyle dom with no breaks are abusers, so you have a very high chance of being unhappy. Good doms who don't ever need a break are as rare as unicorns, so you'd better have plenty to offer them.

Then again, a lot of people looking for this kind of relationship on some psychological level want to be abused. It's a learned helplessness thing. Some people have lost so much of their ability to trust others, they need a partner who acts abusively (or pretends to) so they can let go of that feeling of paranoia that it's going to get worse. So they can stop looking over their shoulder and waiting for the other shoe to drop. It's not rational, but that's the kind of person you create when you abuse children. They grow up into adults who don't know what to do with themselves in a healthy relationship.