After graduating high school, I saw bitcoin on youtube. At that time, it was about 60,000 dollar.
I had some research about Bitcoin. I specially watched videos of Michael Saylor. For me, he sounded very logical.
I checked the price, and I could see that Bitcoin is up 45950334.26% since 2009. I thought I am very late to start invest to Bitcoin, but many people said it is early. So.. I am really confused.
The term "late" and "early" are kind of subjective, and not applicable to all especially for you.
You said that you're 19 years old currently. Just calculating, you were born in 2004. Bitcoin was created in 2008, and you said the year 2009. Nevertheless, at 5 years old, do you think you already have everything that you need to invest? At 5 years old, is your brain thinking that you need to invest already? No. What you think at that time is playing, studying, playing, studying, and never investing, so don't say that you're late because by the time Bitcoin was created, you aren't ready at first place to invest into it.
I just started investing... or I should say holding Bitcoin in 2017. Can I consider myself late then because I didn't see Bitcoin's price reaching $100, or $500, or even $1000? No because I don't even know anything about investing at that time. That's why the term late and early in crypto is subjective because of different factors. I don't consider myself late in investing into Bitcoin even though it has been existing for around 8-9 years at that time when I was starting. Being late or early don't matter. What matters is if you start investing or not consistently.
I receive about $100 a month from my dad. I am planning to use them to buy some bitcoin.
Please give me an advice to be successful Bitcoin investor in the future.
You want to be a successful Bitcoin investor? You have 2 choices, but it all depends on you.
First, be a trader. High risk, high reward. More profit for you in a short amount of time. Second, be an investor/holder. Low risk, low reward. This is more applicable for you TBH because you said you're only 19 right. The time horizon for you is very long. You can buy, and sell Bitcoin for decades, and can earn enough for you. Anyway, do some research first before investing, so you will not be overwhelmed.