If you want to buy Bitcoin so it is a right time to buy now. If you want to sell Bitcoin so you must hold your Bitcoin for a long time because in this moment Bitcoin market prices is very Dump. If you see previous market of Bitcoin that was around $20,000 but in this moment it is only $8,000 so you must understand the market situation and you never want to lost your money so it is better to hold your Bitcoin. Or if you buy Bitcoin when market price was $6,000 then you can sell in this moment because now Market price is $8000 +