Talk to Dermatologist on Hair Thinning

assalam alikum doctor , a year ago due to my exmas i took alot of stress and due to bad sleep and diet i faced extreme hair shedding , then after that period now its under control and shedding is gone as i improved my lifestyle (diet and sleep) but its still thin and weak at corners and growing slowly , what should i do can i reverse it wihtout any medications plzz?