Today's hold strategy can not create as high a profit as it did in the past. The current Crypto market is volatile as no one can predict their price. So rely on the experience you have to invest in Crypto, so you will succeed.
Even then bitcoin is best investment as price of bitcoin is really volatile but it use to get high and get low, if you have money then you can invest in low price and you hold then sell at very high price, it is good to hold your bitcoin at this position when prices are getting high, no knows what will happen next but if you are experienced you should keep faith that price increases thousands of dollars within few months, so hold as much as you can hold without any fear of lose.
Bitcoin is basically good for long term investment and in order to earn profits from this digital asset, a holder should be willing to keep it in wallet for a long time. Definitely, there would be situations in which it wont be an easy task to keep bitcoin but nothing big in this life can be achieved without having extraordinary skills. Besides, holding is not a difficult task. No efforts are required.