You need to get comfortable being uncomfortable1. What you're going to do when bitcoin crashes 80% or more tomorrow? You're going to sell? If so, you're probably more overexposed than underexposed.
Bitcoin is a confidence game.

Footnotes

  1. This comment from @nerd2ninja always comes to my mind when I think about this
this territory is moderated
What's wrong with him.
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Well, after seven years of up's and down's... I'm fairly battle-tested.
What changed is the size of my Stack; took advantage of <20k BTC and said up's and down's hit different since those magical days.
Oh, how I miss the innocence.
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Don't look at your stack in fiat terms :)
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Hm, haven't thought about that yet, thanks.
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