Do not go with someone's prediction and invest believing their prediction. Anything can cause crypto value fluctuate. 2018 has been an year for buying coins with cheap rates and you are aware of this. Trust in bitcoin and crypto coins. Have a complete study, pick the coins you find potential and invest. Just make sure, crypto value fluctuates and none knows when values would spike up or fall back. Prepare and train yourself to be familiar with crypto currencies movement. We have short and long term profitable coins. Choose and abide to the timings accordingly.
thank you for the advice, I will learn more for coins in the market.
Before the start of 2018, some people said that this will be the year of bitcoin and now you say that 2018 was and is better for buying more and more bitcoin because the price is low, but what about the investors of the previous year that bought bitcoin for $18000? They are still waiting for big bump in the price, so that they would be able to recover their deficits.