The First workout

Move your body before you pick up external weights. Weight training is great because it builds muscle and allows you to manipulate your body in advantageous ways. It also creates a sense of dependence on weights for fat loss and strength gain. When you do bodyweight exercises it is truly you vs you. This is particularly valuable for your confidence.

10 squats
1 plank
1 lunges
5 push ups

You can use a chair for support for the squats. You can do push ups from your knees. When you can do this exercise without support you can do it twice back to back.