I think you have to think twice if you want to invest in two coins, I just urge to look for more promising coins.
choosing a coin to invest is a difficult choice but when we are sure and good news emerges then invest, but if we are faced with a coin that has a small volume and does not have an event, then do not force to invest.
You are right, there are lots of factors to consider first before making investments to be able to avoid being scammed or loss in investments. But if the coin have potential then go make investments.