reason being that I have come across some other websites as well that have bitcoin in their names like "bitcointalk", but all they do is advice you to invest with them.
There's a significant difference — Bitcointalk doesn't sell you anything. It's just an online forum where people talk about bitcoin/cryptocurrencies.
I hope my time here will yield life changing results, what do I need to know?
What do
you want to know? And what are your goals that you want to achieve in the first place?