3.HODL Only Altcoins With Real Use Case
There are different categories of coins with use cases,many use case are weak use case,for example using fashion  designer to back a token is a weak use case to me because it means you can only use the token to buy the designer wears and many will call this a real use case? no it wont do very well.
Make sure that the real use case of every altcoins you hold will be very reasonable,the products backing them up must be something that is different and will catch the eye of investors,the usefulness  must be outstanding .

4. Stay Updated Always
Opportunity comes but once as many know it,so always stay updated about crypto,read crypto news online and keep tracks on your altcoins so that you wont miss future updated or even token swaps,some altcoins i hold have already switched to MainNet and im glad i dont missed the opportunity,you can use blockfolio app to track your altcoins.

Altcoin season is what many are waiting for,even new projects are waiting for altcoin season to return before they get listed on exchanges,im sure of one thing and that is good things dont come easily,today is bitcoin turn to reign and one day altcoins will have its day as well.