If this line is your motto as an investor then 99% you would really lost up money yet this isn't applicable on all of coins in the market.

Not all coins it always goes back up and this will only suit out with BTC and other top altcoin in the market.The only thing here is that there
were people who do hope on such pump up of their bags specially on low cap ones, once it hit 100x or 1000x then that's a very big profit for them
but most cases this doesn't happen.