If I am the person I want to be, I'd give around 980,000 of them away to people who need them more than me and continue life as normal and probably keep 20,000 USD until I got a job and felt that I had a stable life, and then give the rest away. I'm sure they have the potential to bring a lot more happiness to people on this planet if they were spent differently than if I just wasted them on luxuries.
...There's only one way for me to find out who I actually am. Someone needs to give me one million dollars now.
I already feel that I have way too much money, but if I spend them I'll just have even more way too many items. It's terrible.