Really it's quite simple.
1. read posts in this forum until you know everything
2. start selling your crap
3. get financing or cash for a boat + survey + sea trial + slip
4. find a good marina for liveaboards. protected water, low prices, internet, nice people
5. buy the best boat
6. fix it so it doesn't leak and stays warm/cool
7. live on it!
There's volumes of information on little gadgets that make life easier, or what to do about bugs, condensation, theft, fire, food. Living aboard is easy, but living well requires doing your homework.