No matter what you do with ps, the tools in the left toolbar must be skilled. There are 22 groups of tools with 56 different functions, which are divided into five categories:
Select Tools Settings Selection.
Painting and retouching tools paint directly on the image or repair and modify the original image.
Path tool for vector drawing or selection.
Text tools Text input editing and text selection settings.
Auxiliary tools assist other tools to process images.
You should focus on learning retouching tools, such as seals and red eyes. Path tool, if you want to select an irregular selection on your face, you can use the pen tool to select it and then convert it into a selection. Masking, cutting, etc. in text tools and auxiliary tools. It will be used at any time.
Of course, the filter should be very skilled, but you don't need to master it all. There are many filters. For example, the Extract filter can separate objects from the background. The Noise filter adds or reduces noise to an image. Adding noise can eliminate the color band when the image is mixed, and can also be used to better blend a part of the image with the surrounding background. Reducing unnecessary noise in the image can improve the image quality. There are many things you must master skillfully. Others, such as' pixelization', divide the image into blocks to make it look like many cells, which can only be used as an understanding.
For photo processing, color processing must be very important, such as the adjustment in the image menu and color panel, which must be handled with ease.
What is mentioned above is only a small part. If you ask me, if you want to learn well, you'd better read all the functions of ps first, and then work hard on the parts you need to master.
I can give you a reference. I saw all the tools, menus, functions and usage of each panel of ps.
(Be sure to look carefully. It takes more than a month for an average of three hours a day.
I used a ps introductory reference book, which was borrowed from the library. You can also search for tutorials online, but it is best to introduce them in detail, so that the basic tools, panels and menus can be made complete and detailed.
If this is your future job, you must be patient and eat ps thoroughly. I believe you can do it ~ ~ ~