Hi Yansa, you're very welcome. Since you've been rocking your lovely short hair now for three years, your hair should be all natural and growing it should be no problem. As you mentioned, keeping it moisturized is always good for our hair. Also, try to use a good moisturizing shampoo, conditioner, and weekly or bi-weekly deep conditioner, as well as a daily hair dressing, hair lotion, moisturizing gel, or leave in conditioner; whichever works best for your hair.
If you would like some product ideas, let me know. Good luck and keep me posted on your journey.