Wellcome. Read this topic and see what You can add to Your post: How to get the best out of this forum - Using Arduino / Project Guidance - Arduino Forum
This sounds not correct. Learn the difference between a servo motor and a servo. They are very different in what they do.
Don't expect helpers to use that kit. We are newbies to it, know nothing. Think like this: How will You explain the situation for Your grandmother?
That can be not good. USB is not made for supplying motor currents. Some USB only provide 0.5 Amps. Motors should in general not be powered by the controller board.