First FOMO is a common mistake of the new folks in our community,second you made a common mistake,third you shouldnt blame yourself because most of the people here have done that,fourth you should know how to effectively pick good altcoins with these bunch of shitty coins out there,lastly do a lot of research before investing to any coin because investing blindly is worst than donating your money to charity because 95% of the coins in the market are shitcoins,spending a lot of time doing research could have saved you.