Go to youtube, search for "logo tutorial" and you will find a good bunch of tutorials teaching you how to create one. Best of luck creating your first logo.
First learn about vectors and vector designing (Google). Photoshop is not the most ideal software to create really pro quality logos. Illustrator and Coreldraw are the best logo making sw. Learn any one or both, and the working knowledge of Photoshop will be helpful in making great logos. Of course you need to know about designing concepts, and also must possess creativity to be successful in this field. Also, there is huge competition in this field, so in the initial stages at least, getting job works can be quite frustrating, and very little profitable if you want to be a freelancer in the field of logo-making... Of course, YouTube has plenty of tutorials to help.
Use some tutorial videos and ask some experts on logo designing to improve your individuality and creativeness. After learn basics see this forum in logo design how they are designing their logos and became a logo designer....
If you want to make your own logo for your company - its better just to buy it on fiverr and if you want to learn it and become logo maker guy - better go to some paid courses and so on - but I guess in this niche its huge competition
