I would, first of all, figure out where I wanted to move that was outside of a city and in a forest setting. I don't really keep in touch with my family, but I would make sure that I didn't have any information online leading to ways to be able to contact me. I don't want anyone to beg me for money if I ever have a lot, so I'd try to remain anonymous and pay to make that happen.
After finding a place to live I would pay it off for the rest of my life. Then I'd probably throw out my computer I work on and get a gaming one that I could also use to make music on. I'd spend a lot of money on making a music studio in my home. That's what I would want to do first, is create an album or two over the course of a year. Not having to worry about bills would help me to be more creative.
My wife and stepdaughter would get to do whatever they wanted whether it be going to school or getting things together that they could be creative with. I don't want any of us to get bored, so I'd plan vacations and the like to places that we've never been. Traveling with them would be fun to do after we got bored being at home all the time.
For my cats I'd build a whole other piece of property on the land I get out in the woods. I'd build all kinds of cat towers and places for them to hide. I probably want to build all kinds of things on my property for fun. I love to build and have helped to build a house before so I feel like it wouldn't be that difficult if I had enough money to do what I'd like on my own land.
Every couple of months I'd want to go and take some kind of trip to a new place. That way, I could gain more insight on the way other parts of the world operate. I"ve only been around the USA in the midwest and parts of the west coast. It would be nice to see all kinds of other cultures and cities.
Finally, I'd get my teeth fixed. They are in terrible shape and will cost a lot of money to take care of. I'd probably get implants for all of the teeth I'm missing or that are broken. This is going to be painful but worth it, because it's one thing that makes my life hard and is very embarrassing for me.