Welcome!
If you are able to get packages shipped to you (I don't know where you are), then check a place called Manhattan Supply Company, and look for "flat stock", and a type of steel called O1, or O-1.
That's a letter "O", not the number "0", just in case there is any confusion.
O1 is inexpensive, easy to grind, easy to heat treat. You can do it yourself, if you choose to try.
As for tips.
The book "How to Make Knives", by Richard W. Barney and Robert W Loveless.
Also Wayne Goddard's "$50 Knife Shop". Get the revised edition.
"Step-by-Step Knifemaking: You Can do it!" has some helpful information.
The fourth book that I highly recommend is "The Complete Modern Blacksmith" by Alexander Weygers. It's not a specifically knifemaking book, but it gives an awful lot of information about scrounging your own metalworking tools and supplies.
Good luck! We look forward to seeing pictures of your work!