Okay, I'd listen to all the advice of members on here and I'd move out of my parent's house.
If I didn't move out of my parent's house, I'd hire a therapist this time because I'd think I would have a dependent personality disorder or something where I'm overdependent on my parents. That is exactly the extreme type of scenerio that can test something like that out. Either I'll move out or seek therapy about why I'm not moving out and work with a professional to move out.
Secondly, I'd take further inventory of what I want to do in life. I have money. I can go to law school. Go to university. Try a different career without having to worry that I can't access government loans. It would feel like I have some control of grip on life. Right now I'm in Real-Estate, and I'm not really doing that well, and have never really choosen this profession. It goes without saying I'd likely quit Real-Estate, and get career councilling and coaching and professional resume writing or applying for university / schools or just apply for a good job out there, and go totally for a complete career change. (hey it's just $ 500 000, it's not like it's a billion dollars, then i wont need a career at all!)
I'd get a personal trainer twice or three times a week rather than the current once a week, and have three different female trainers for variety, while doing an intensive training at the same time.
Then once I get a grip in my life, have the career that I want, move out of my parent's house, and have the type of car I want ("Infinity" car, which I'd likely lease and pay monthly payments for a few years), then that money would have served a purpose of bettering my life from what it is now.
Afterwards, I'd sign up for a few bootcamps and test my boundaries at the same time, and practising picking up girls in day game, and other areas. Since I have money I would have more free time in order to play around with various pick-up styles, etc... I think this one pick-up artist has this seminar overseas where they go to Cancun Mexico and teaches pick-up there. Anyway, just some ideas.
Again, if it's divine intervention (i.e. a Real-Estate deal) -- then 50 000 will go to the church, and another 50 000 or more will be allocated to various charities as the Lord directs. I currently don't play the lottery so I can't win (which is just likely the same if I did play it, except I'm not losing any money).
After all, it's all about becoming a DJ, being in control over your life, and that quest to live the DJ lifestyle. With $ 500 000 I would have no excuse at all, not to become a DJ and won't be able to blame anything on money this time.