It is all about our timing, knowledge and still following the fundamentals one of which is to invest only the amount that if it is lost , you won't be pained. And if you as a complete newbie don't know where to start, start with Bitcoin, it is the safest.
There are people who has been in crypto-currency for a long time and still they are losing in their low cap altcoins investments and their are newbie with zero knowledge who are winning in their low cap altcoins investments.
Low cap altcoins investments poses as risk to both the experience and the non experience especially when they are easily manipulated and based of hype.
I am not saying that low cap gems can give an investor their expected ROI but it's a long shot and to mitigate loses Some investors buys lots of different low cap altcoins hoping one would break through but still their are higher chances that non would give the expected results.
Crypto-currency is not a quick wealth opportunity, buy Bitcoin and Hodl.