I dont think that the bull run happened last 2017 will happen to this on going bull run this year knowing that many big institution now are acknowledging and accepting the benefits of cryptocurrencies in the economic aspect. I will just agreed to what you have said that get profit each and every time opportunity is in your part.
Yes, the Bull run of the past few years will obviously not always be the same as this year and even in the following years, because every year the conditions are always different in the crypto space, so that interesting and different things will be seen by everyone in crypto.