I think one of the best lessons I've learned so far in investing is to always invest money that I really don't need to used for weeks and months. In that way, I can survive the uncertainty that I will face for a few months. So whenever I face bearish season, I can still stay calm because I can really wait until it goes high again.
 
I tried investing money that I really need expecting it to double for a week because I read it will, it didn't, and I already need to get the money so I just lost a few. One of the funniest newbie days for me.