Thats a good strategy to hold long term. I would say that approximately 10% of my crypto capital is placed in short term trading or swing trading. I usually let them ride for a week or two.

The rest of my portfolio is long term, several years ahead, and then you definitely need to look at the management team, crypto usage, uniqueness etc.

I am also a member of this Facebook club with 32000+ members:

https://www.facebook.com/groups/cryptocurrencycollectorsclub/

You can get plenty of tips over there, so its a good complement to Steemit.