Autoflowers are on fixed timeline (generally 70-90days from seed) Cutting anything will remove energy from the plant and lose potential yield. Leave this method to more experienced growers. & Apply it to Photoperiod plants, NOT autoflowers!!!
read guide about LST (Low stress training) and apply it for better yields with autoflowers.
https://www.royalqueenseeds.com/blog-low-stress-training-n100