We got in at $8,000 back in mid-November last year, so first time we're seeing a lost on our investment as price dips below that mark. Still got some other cryptos at a low price, which they are slowly drifting back towards. We didn't invest money that we depend on, just a portion of money that was sitting in a savings account doing nothing. Bitcoin and other cryptocurrencies can do what they need to do now (stay like this or even head down to $2,000 as you said it could), but please perform well when we want an early retirement gift in 10, 20 or 30 years! Like you, HODL-ing for the long-term. If the gains are not great, it's just a portion of the pie (still earning from a job, which we'll put in other investments and even 'da bank').
We would buy low, but our funds are tied up elsewhere. It's a shame! But, it's the name of the game.