Quote from Loki:
It is funny that how so many people have the " right " advice for the OP. I bet some of the people who gave advice are the same people who once had 700k or 100k and blew up their account.
To the OP: You have a great opportunity, don't waste your time with a loser job, you have nothing to prove to anyone. You are different from most 18 y/o so go ahead whatever it might be, do what you love.
Think hard about what is that you really want to do in your life. Sell what you can then follow and commit to your dream 100%. If you have passion for what you are doing chances are that you are going to make it.
Trading professionally takes time and no one will tell you how to do it, but from your previous posts you seem to have a rational approach. If in the worst case scenario you blow up your 50k and learn you can always come back. There is nothing wrong with losing trades because it is part of this business, it is how you react to losing trades that makes a difference. Most amateurs have to be right at all costs and end up losing it all while professionals leave their ego out of the door and get out fast from losing positions. That way they can trade another day.
If you want to learn a little about trading send me a PM and I will give you my website. I am not selling/promoting anything, but it gives a starting point to someone new or green like yourself. Maybe it will just scare you and that might be good too. Although this year I am flat I aim to make 1%-2% every month.
I have been trading professionally for 2 years, but I am still learning my performance and trades are posted. Again it is nothing more than a starting point, but it is real. Trading professionally is tough, but it can be done.
You have one of the things necessary to be succesfull. That is a capitalized account, the rest is up to you.
Good Luck.