The hardest part is keeping an open mind for jumping on early. Hard because 99% turn out to be dud anyway, not to mention our crowd are skeptical bunch.
My biggest "regret" is ignoring Bitcoin/Ether.
Saw Bitcoin posts when it was $5.. nah it's a scam.
Oh it's gone up to $10.. nah it won't go up further.
Went up further.. nah won't buy bcoz already too expensive.
Ether announced.. lolz nobody going to buy another coin since there's already Bitcoin..
Ether goes up.. WTF.