https://bitcointalksearch.org/topic/bitcoin-will-never-reach-20-again-27348Always a good idea to revisit the past and learn from it. You can find tons of histories like that if you go back a couple of years. Imagine how much those guys regret being short-term, non-long-term visionaries. Those guys missed the point completely. They had tons of entire units on the most important network on the planet and sold them for peanuts.
https://www.youtube.com/watch?v=_0mykANOMGQWatch this and put things into perspective.
If you aren't holding long term, you'll be the guy on that thread while the rest are holding Bitcoin valued at prices we can't really fathom right now, just like people back then couldn't fathom the implications of what the internet did to countless businesses, therefore, being able to value it properly.
If you are a doubter on Bitcoin reaching ridiculous prices (imagine how ridiculous the thought of 1000 would be back then, when people said as rational selling at 20 dollars) you'll miss on ridiculous gains of purchasing power in the future.
Whatever you do, good luck, and remember that thread. Actually print it and put it on your bedroom wall.