It is an addiction but that is probably not something new to you. Most, like myself, who hang out here on trad gang do not have hobbies - we have ossesions! I have the 50$ knifeshop book and it is loaded with info but be prepared to spend way more than that.
I will say that buying known steel, up front and learning one steel well is a huge advantage. Not that I did and I imagine most started with junkyard steel here but I was offered the same suggestion and should have listened. It will shorten the learning curve imensely. Raw, quality, knife steel is not very expensive - time is!!
I am picking up a new grinder today and hopefully it will help take me a little farther along the track to finally producing a quality knife.
I will say that I have found the knife community - here and on other sites - to be very helpful and freely giving of information. Much like trad archery, it just seems to be a good group, so ask away. Everything you will try and every mistake you make has been made many, many times by others before you who are willing to impart their knowledge to help.
Welcome - Bob