Now, this might sound strange, but a few years ago Bitcoin was doing very well and people sat up straight and Bitcoin grabbed their
attention. (Around 2017 when the Bitcoin price reached it's all time high of around $18 000 per bitcoin.) Many people started to take
Bitcoin seriously and they thought it would go mainstream soon.
Let me correct your information first. Based on
https://coinmarketcap.com/currencies/bitcoin/ Bitcoin reached ATH in 2017 at a price of $ 19k per BTC.

We cannot deny that after ATH 2017 the price of Bitcoin dropped dramatically in 2018 and did not experience much increase in 2019.
However, don't worry about other people laughing because of this. At least we still have momentum and hope going forward to reach the new ATH.
When will it happen? No one knows.