Mostly from tutorials. I was here since BMR with another nick, i start from 0, reading ppl's tutorial and get what i need. (Thanks given) And yes, chinese private server have some forum and i read a lot from there. And u can google it. Some software provice u basic tutorial, get some idea how things done. Goodluck.
- Totally by using tutorials, or maybe the help of a friend. Eventually, with practice you will master the use of different hacking tools like WINHEX, or EXCEL, or even the Notepad lol
My advise to you is learn it from a friend, it can be really hard reading tuts and do it on your own. I have a friend that's nice enough to teach me how to hack ^^, his name is Long. Reading from what you wrote up there, I have a sense that you are brand new to hacking.
I learned this by looking at others tutorials and doing the basic myself. Like in this pack editing, if you look closely which things are where you will soon learn to know by just fast looking at the lines etc. And when you know the basics you just keep doing harder things and then harder ...
This stuff doesnt come easy, but as the above, just hang around and do tutorials and check out the troubleshooting threads. You will defiantly learn a thing or two.
like WINHEX, or EXCEL, or even the Notepad lol 
