There are many resources available for musicians looking to learn jazz standards. Books, in person and online courses, workshops and website like this one. All these can help you improve. If you can have a private teacher it’s even better. But nothing will replace hours of practicing. When someone tries to sell you a program “to play like a pro in 4 weeks”, you know these are charlatans.

There are a lot of content on platforms like Youtube. But you get lost in an ocean of information that is not organized, not customized to you. Plus, the amount of garbage surpasses the good content.