Yes! BTC disappointed me very well because i invested in coin and then BTC got dip and i took a good loss and still stuck in loss. I am waiting for BTC up and then I will sell my Coin.
You will only get disappointed if you really don't understand or try to understand the market and what is happening in our world nowadays. People will get disappointed if they only care about the profits and they still thinking that in crypto they can earn fast with a high profit which is actually a lie, it is not always rainbows in crypto.
In the world of trading, it is not always easy or profitable because everything will have a reciprocity.
Moreover, to reap large profits in a short time is very unlikely and it will continue to be a dream.
And for me so far, understanding the crypto market is a fortune, not a way to get rich quick.