2. A good logo is the icing on the cake. Bad logo brings you destructive image propaganda.
3. The refinement of a brand designer requires professional knowledge learning and practical experience. It's free or low-priced. You can call a designer after studying PS for a few days.
Professional people don't waste time here for grades.
I suggest you take the image building of your company seriously and have a sense of responsibility. Using one casually is like putting inferior cosmetics on your face, and the consequences can be imagined. If so, it better be true.
6. The above is my advice as a brand designer for many years, whether to do it or not. You have it all. It depends on how you know it. I also have this information in Baidu Space for your reference. All are personal opinions, for reference only, or you can contact me for communication or design.