bitcoins value wasnt even valued in 2009
If we look at this thread posted by @DdmrDdmr -> 12 years today since the first known price was set for BTC, then we can see that Sirius (Martti Malmi) sold 5050 BTC to PayPal in late 2009 using the New Liberty Standard. I'm not saying that the OP is telling the truth, but there remains a reasonable doubt that he still managed to buy BTC using the already mentioned service.
Human mind is very complex. One cannot rely on human mind to correctly remember things. Not 100%.
There may be that OP is trolling. There may be that OP tries to "rewrite history". And there may be that OP just doesn't remember some things right and the year can be anything, even 2015. (of course, it may also be 500 mBTC)
I agree with Franky here, OP should get his story right first.