Buying a single coin is too risky. Either you earn big money or you lose big money.
Of course, in the meantime, many pumps will fly in front of you, you are just watching

dont use just 1 basket for your eggs.
The most accurate strategy here is having different ones in your altcoin basket, maybe 10-15 different ones. This reduces the risk significantly and the chance of catching great pumps increases drastically.