If still you think you don't know enough about Linux, don't worry! It's just another Operating System (OS); just use it every day the same way you use Windows, and you'll get used to it eventually. If you want to follow another course, here you have another one. There are many on the internet!
If you want to improve you bash scripting skills, here you have another course
If you're new to Linux, install Ubuntu on your PC and start working with it. You can follow this installation guide
Follow this course
If still you think you don't know enough about Linux, don't worry! It's just another Operating System (OS); just use it every day the same way you use Windows, and you'll get used to it eventually. If you want to follow another course, here you have another one. There are many on the internet!
If you want to improve you bash scripting skills, here you have another course