What do you want to know about bitcoin or what do you need help with specifically?

If you want to go really deeper, read books. I suggest taking up "Mastering Bitcoin" and or "The Internet of Money" by Andreas Antonopoulos.

Mastering Bitcoin: https://www.amazon.com/Mastering-Bitcoin-Programming-Open-Blockchain/dp/1491954388
The Internet of Money: https://www.amazon.com/Internet-Money-Andreas-M-Antonopoulos/dp/1537000454

If you're more of a video guy than a reader, then you can go to Andreas' YouTube channel. Lots of good information right there: https://www.youtube.com/channel/UCJWCJCWOxBYSi5DhCieLOLQ