Answer yourself.. Can you sleep well?
Yes.. then don't sell.
No.. sell 30% and HODL the rest.
Now, can you sleep with no panic?
Yes, then.. don't sell.
No.. sell 30% and HODL the rest.
Now, can you sleep with no panic?
..and so on until your sleepy pattern is right.
The more you study #bitcoin, the less will you sell and the more will you buy, but that comes with time.