"Oh life is so unfair, stupid noobs like OP get money and don't know how to use it."
COME ON, I think it's cool that we get some serious bitcoin business going on. High testosterone levels make males take more risks, sometimes it gets them killed but that's how nature balances things out. The fact is that if you don't take risks you will never achieve anything.
There's unnecessary risk, and there's calculated risk. IMO risking everything you have on one thing is unnecessary, at least if we are talking an amount of money that OP won't earn back in 6-12 months or so just saving a little.
There's a difference between risking everything you have if it's 20 btc... and 648 btc. The latter would take a looong time to recoup from.. possibly never. Keeping 350-400 btc and locking in the rest would at least make me sleep a lot easier.. and wake up with a smile on my face.