Increasing creatinine. I am 31 year old!

I used to drink alcohol every third day 2-3 cane since January 2025 my creatinine was 0.82 in September 2025 in December 2025 I rechecked it raised to 0.98 and after this I took another test in march it was 0.98 at that time I had tested for UACR it was under less than 30 and and after that I checked in 24 april 2026 for creatinine it was 0.98 and uacr was under 30 in this period I used to drink beer every third July 4 was my last day when I drinked alcohol after that day I stoped drinking alcohol in 13 July 2026 I took another test of creatinine value comes 1.16 so I took cystatin c value comes 1.12 I tested for usg whole abdomen my both kidneys were normal in the report just a 2.8mm stone found in left kidney what should I do to is it normal or CKD I am 31 year old