using milling to delay and control two color sensors and two servo motors

hi, I need help so basically, I have been trying to work on a code that would allow souring 2 different colors of balls in two different locations meaning one color sensor and servo motor in a different location than the other ones, and I was thinking about just using Millis because I need the balls to get release or move by the servos in one second interval per ball.

I also know that I need a battery attached to the board in order to not overworked the Arduino.

this my first time using Arduino so anything can help.

thank you in advance.

Start by reading and understanding Using millis() for timing. A beginners guide, Several things at the same time and look at the BlinkWithoutDelay example in the IDE.

that would allow souring 2 different colors of balls

How, EXACTLY, is the Arduino supposed to sour a ball? Inquiring minds want to know.