HODL or SELL? What will the price of bitcoin look like in 1 year?

Ok, so here's what happened... I bought 3 bitcoins @ $800 back in early 2017 and then I sold them roughly around $10,000. Now, if you would ask for my opinion, if you have bought your bitcoins below $3000 then I suggest you could sell half of your bag, buy something for yourself, and enjoy - HODL the other half.
Now, if you have bought your BTCs above $8000 then I will definitely advice to HODL until it reaches $20,000. Cheers!
Anyway, I have 10 LTCs at the moment... let's see how much would it be in the next years.