books:
Shooting the Stickbow.
Free vids"
"The Wedge" series on youtube. ( Archery form)
https://m.youtube.com/playlist?list=PLjhb3TbQb5MHLJTbzjtvPUtjY8sRubNPIAnything by: Jimmy Blackmon
https://m.youtube.com/watch?v=LceBNHj1FDM Also, vabowdog. (Dewayne Martin), Arnie Moe (a great teacher), The Push series and others.
There are so many outstanding free trad archery vids out there. Just do a little looking. Use a light draw bow ( 30-35#) to reinforce your technique with lot of repetition.
All the above these helped me a great deal.
website:
Stickbow Leatherwall II. (trad archery)
Tony Camera ( author of Shooting the Stickbow) is a regular poster there, goes by "Viper.". Search his posts by his handle name. You will learn a lot.
Good luck.