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I'm certainly not convinced about this information that he gave to me...I want better ideas and enlightenment on why I should buy bitcoin.I need help please!
Give me a reason why should we convince you at first place? Are you a famous newbie investor?
You need enlightenment? There are many information online that may enlighten you on why you should you buy Bitcoin. We aren't the answers whether you need to buy or not. If you really want to buy Bitcoin, learn it yourself, or find a mentor that might guide you.
As for me, I will not enlighten you or whatever term you want to use. You want to buy Bitcoin? Go find information online that will help you. Go watch videos that will help you. Go read articles that will help you. We don't need to enlighten you nor you need enlightenment from us. It's already good that you have a friend that helped you.
Well, what I said might be a bit harsh, but that's the reality.

Go learn, and good luck I guess.