If you want to be successful, Never follow or Believe people, Trust your self and Learn Techniques to Identify the right coins.
How to Learn -
Step 1 - Draw Different Product Verticles based on coin usage, like - Example - Currency Coins ( Bitcoin, LiteCoin etc ), Technology Coins ( Ripple, ADA etc ), etc..
Step 2 - Once you come up with product lines - I know it is hard to come with all product lines in the starting, that's ok. when you select a coin, first see in which product line it fits if won't fit any, create one.
Step 3 - Know the Risks between each product line ( Example - Bitcoin might be impacted by Govt. Decisions, XRP is a Technology product, Technology never goes down until and unless it has issues ).
Will continue other Steps in next Lessions.