Thank you op for the topic, I also have great love for bitcoin, I also discovered bitcoin in 2016, and that discovery was the beginning of a better live for me, but I am still not very much happy though, cus I still believe I missed to invest in bitcoin when I really should have, but this was due to lack of finance, coupled wit the fact I did not even expect bitcoin to become as big as it is today.
In the 2016, 2017, 2018, I was busy looking for ways to earn Bitcoin for free through faucets, and also chasing after airdrops, I really should have spent that time looking for how to save up from my little salary back then, to buy bitcoin, but I didn't, this is still one of my regrets even till date..
But generally though, I am still very much happy with all I've been able to achieve in my life through bitcoin, without bitcoin, I honestly can not tell what my life would be looking like right now.
Not only you, I believe many people have also missed bitcoin in the past when its price was not so high. But regret is not the way to make the future better, and it's still early to get started with bitcoin, IMO. Bitcoin is still very cheap, and many people still don't know about it, we are lucky to know about bitcoin early, so let's take the opportunity before it becomes more popular.