Got in at 205 not that long ago...gping to hold long term

Question about trading. Now the btc is dropping and my alt coins are up nice at a great profit...When I sell them i am trying to figure out what I should be converting them to to make the most profit. Just trying to understand the market and trading more in-depth.Any knowledge or input would be greatly appreciated!

Bought some 2 days ago...

I am trying to place an order for a few s9's currently and it's asking me to put my import number ein  vat and social security #...Anyone else in the states have to to do this?