I would suggest going through this article as it contains all the necessary resources from testing to automation.
Also as far as career path is concerned, there are many sub-domains inside the main testing domain like functional testing, automation testing, database testing, API Testing, ETL testing, and security testing. Depending on your choice you can look for resources on YouTube, there are a lot of free resources available, apart from YouTube you can find the relevant resources on Udemy also but they are a bit costly.
Even when it comes to automation testing it again has its sub-domains like UI Automation of web pages which is the most popular or API Automation using Rest Assured Framework or Mobile Application Automation.
For automation go through every programming language like Java, Javascript, Python or .NET and choose the one that suits you best, however, from beginner’s point of view, python is a good option. Once you select the programming language then go through basics like Data type, variables, functions, conditional statements, loops, etc., and then proceed with OOPS. After completing all these concepts you can start Automation basics concepts.
And once you are familiar with how webpages are automated, you can proceed with frameworks and choose any framework that suits you best. Meanwhile you can keep practicing programming side by side to make you programming skill stronger. As it will help when in future you start learning DSA.
However in best case scenario it will take at least 2-3 months.
Apart from all these there are lot of AI Based testing tools in the market you can explore them also.