Help with simulation of Customed model in Webots !!

I am planning to create a simulation of 6 DoF robotic arm . I have 3D model , but I need to implement a simulation of the arm . I am beginner to simulation and to be honest I have 1 month to do the simulation. I am using MacBook M1 Pro 2021 to do the simulation . I am confused about this . Please help me . I am also beginner in using Webots also .