Investing is part of failure, then I suggest to all do not lose hope if your expectations are come true, so patience is important and wait for next chance to earn profits by holding altcoins.
How long we should be waiting? I know it will have that advantage but it is quite no good to be in patient all the time. We don't to be stuck and wasted a lot of time just to keep in waiting, the market moves slowly and so it takes most probably a year before we will on the ATH again. And I never feel good for that long. Better to have some investment right now and even we gain small amount but it is good enough rather than of wasting our time for nothing.