I think you need to analyze first if the project is good. If it regularly updates or not. Moreover, if you have some background in dev, make sure to scrutinize the site or platform first before buying a coin from that site. Do some extra research if you must. If it's a super duper new coin with very few feedback, do not invest in any coin yet. If you want to invest, do not put a big amount of money in that coin. Make sure your investments in coin are spread out in case something happens.