If you're new to lifting, I urge you to use this or a similar full body workout routine for beginners. (kingofthegym.com)
I hope this full body workout routine for beginners helps answer some of your initial questions, and increases your confidence about going to the gym. (tomcoffeyfitness.com)
As you saw a simple weight bench can provide a lot of ways to train and you can quickly create a full body workout routine from these exercises. (abmachinesguide.com)