New Moisturizer, New Routine, New with Retinol

Hi! Please help me out. I’m currently going back to my original skincare barrier repair morning and nighttime skincare routine but I want to change my moisturizer to the one I’m using now which is the Dr. Althea Azulene 147HA Intensive Soothing Cream. I also want to start using retinol now since I’m in my mid-20s. The usual products I use are tagged in this post but I alternate on some products. For instance, I use Cosrx Salicylic Acid Daily Gentle Cleanser for when I need to exfoliate, and I’m also looking into using Mediheal Retinol Collagen Lifting Pad once a week. I’d like to clarify on some things though. For one, can I use Dr. Althea Azulene 147HA Intensive Soothing Cream during my skincare barrier repair and retinol skincare routine? Also, can I use my salicylic cleanser with the retinol product I’ve tagged? Additionally, I’d like to ask for help recalling. I’ve previously used separately, The Ordinary Mandelic Acid 10% + HA and The Ordinary Azelaic Acid Suspension 10% and my skin loves it. When do you recommend for me to use them considering my routine? Especially now that I’ll be incorporating retinol. Thanks to anyone that can help!