My friend who first told me about bitcoin is now a millionaire in dollars. This happened before my very eyes and I have been a regret for not listening to him when he was talking to me about bitcoin. I haven’t made any significant progress in my financial life since then, but I was presented with the opportunity to change my narrative ten years ago but I couldn’t.
It's because of your doubt like many of us here when Bitcoin is just starting. We never thought the price can rise this much. You're not alone with this regret but it happened already and we can't turn back time. Let's say you did invest 10 years ago, can you keep holding up to now? Knowing the price already had a significant growth especially during bull run. Those who were able to hold their Bitcoin from the beginning up to now are the ones who made huge profit and a real long term hodler.
Anyway, it's not late to engage yourself. At least now, you have many realization about Bitcoin since you're aware of its history. Buy and hold.