Is it difficult to learn Photoshop?

I have no experience with Photoshop, but I am forced to design posters / banners / brochures for my company's products and have tried to search for free online image editing tools. , but according to many comments, photoshop is the best software. Today, photoshop is installed on the computer of my company and I do not know how to use it. Does anyone know a tutorial for beginners for photoshop? I need to know how to cut people's faces and design it into a poster / brochure. And…

Is it difficult to learn Photoshop?