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.