Cryptocurrency investment na one of the most smartest kind of investment but, it involves high risk and if you lack the fundamental knowledge of the whole thing, you may likely miss out on the right time and risk to take, just as you pointed out, cryptocurrency is a volatile assets and as that, no one can tell when the right time to invest or to predict what the price of coin will be, so for that, the buy time and price is very important since it far better to buy low and sell high, that is the basic concept that have proven effective for many investors.
First check the coin and it potential and secondly check what the best price to buy them and how stable are their in the market, having the knowledge of all of thos will place the investors in the best possible positions.
Bitcoin apart from being risky, e dey very easy and no stress, I even prefer Investing in BTC pass most businesses we dey do for offline, because those offline businesses require Ur time , energy and strength, you gats they commot go monitor the business, but for BTC you just need Ur phone, power bank , data and light, you fit monitor am from the comfort of Ur house or anywhere you prefer, every business dey risky, Na just to take responsibility of your risk,