Hehe.
That happened to me, too. 6 years ago. I was a little bit younger than you, i was 18. I was so fortunate as i never worked an hour in my life and i now i don't have to.
Some advices:
- build/buy yourself a house in a nice place; not something big or extravagant, you don't need that kind of ****, you're not a rapper.

- buy a couple of cars, something you really like. And maybe a bike.

- pay your debts (if you have any);
- don't go to college, you don't need it, you already have money.

- help your relatives or close friends if they need money (maybe they are sick and can't afford the treatment, etc.);
- if you are really good at something, you might invest some of your money, but be careful.
- don't buy stupid **** just because you can, you don't need $5k champagne, a tiger in your back yard, etc. As i said, you're not a rapper.
- do things you like (you might like to travel around the world or like photography, etc);
- stay away from drugs or whores. (you could do them once in a while if you like, but be wise and careful);
- put the rest of the money in an account at a good bank.
- live off the interest.
Here are some things i did:
- i like to live for 1-2 years in a different country (now i live in Iceland, i also lived in New Zealand and Sweden, next on my list are France/Italy and after that Ireland);
- i travel, usually once every 2 months i spend a week or so in places like Thailand, Greece, Turkey, Sri Lanka, Madagascar, UAE, etc)
- i bought some cars (12 of them

), now i own just 4.
- i like photography, so i got some pretty good gear;
- i like music, so i got myself a high end stereo (i think i exaggerated a little bit here)

- i
own a nice woman

. Well, i didn't bought her per se, but you know what i mean.

- i like perfumes, so i have over 200 bottles in my collection.

- i
do drugs, not regularly, maybe 4-5 times a month i'll so some speed or acid.

- i like broads (and they like me

). Sometimes when i'm on vacation i "rent" one and spend a few days with her and my gf.

- i bought some watches;
A pretty good life, i could say. It's nice to have some millions in the bank and not have to work or worry about money.
For example, here's what i did today: i woke up, f'ed my gf, drank a good espresso (not some starbucks piss), went for a ride in my f430 scuderia on roads like
this, i shot some seals with my 5D,came home, ate and now i smoke a cigar in my basement while listening to pink floyd on my Wilson Alexandria speakers and browsing MR.
You seem like a smart guy, you'll be ok.

Enjoy your new life!