Which LCD are you using? Can you explain what you're confused about?
For a standard 16x2 LCD without I2C, the examples say something like
const int rs = 12, en = 11, d4 = 5, d5 = 4, d6 = 3, d7 = 2;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);
So it uses pins 2, 3, 4, 5, 11 and 12. You already have your motor on the first 3 so you have to move those LCD pins to e.g. A0, A1 and A2 and adjust the code to e.g.
const int rs = 12, en = 11, d4 = 5, d5 = A0, d6 = A1, d7 = A2;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);
Your topic has been moved to a more suitable location on the forum. Installation and Troubleshooting is not for problems with (nor for advice on) your project 
See About the IDE 1.x category.
You will need a sensor to count the rotations.
Your topic has been moved to a more suitable location on the forum. Installation and Troubleshooting is not for problems with (nor for advice on) your project See About the IDE 1.x category.