*Question 1:*

I am beginning to learn JavaScript on my own. I can program in MATLAB or C, and I went through the tutorials in W3School. I am wondering what site should I visit next for a more detailed and professional level knowledge about JavaScript?

*Question 2:*

I want to build a minimal type blogging site in future, where users can open accounts, can write posts, and others can comment. Will it be very hard to pull this off by myself?

I have fundamental knowledge in HTML and CSS, and like I said, I am currently learning JavaScript. I have plans to study PHP and MySQL next. Should I continue in this manner, or should I move straight forward to WordPress?

*Question 3:*

I have zero knowledge about WordPress. Can someone build a complete forum type website using nothing else than WordPress?

Take Stack Overflow for example (only a very minimal version!), can I build site like this using WordPress, where people can open accounts, post, and comment in other's posts?