Simple questions like Why you want to do what you want to do will provide enough clarity than reaching to the how you do what you want to do,
Once you have your direction clear, better targeted discussions will emerge, and there are wonderful people around, willing to speed you up
Programming proportional servo control using an Arduino should be like your 5th project on the Arduino, the 1st one being blinking an led, colloquially known as the "hello world" of microcontrollers.