There has been an issue of "how to know a project with prospect" especially for newbies. Amidst several means of determining if you should invest in a project for a long term, carefully doing a fundamental analysis of the project you want to invest in cannot be over emphasized. Fundamental Analysis includes, Knowing the team behind the project, Token Utility, project road map. When all these are  carefully determined, you should be able to tell if investing in such a project is worth it.