OP, this is the best advice you've ever been given. It is good to come to the forum to gather opinions and see if there are people who have been in a similar situation to yours, but at the end of the day, I have seen several threads of this style, and in the end it is best to consult with a lawyer who is a specialist in crypto taxation. With the money you have withdrawn, you have enough pay him for a consultation or even have him prepare your tax return for you. Think of the money you pay him as an investment.