brain fog for 3 months

I (19M) have brain fog for around 3 months now. It started suddenly day after i woke up from drinking lots of alcohol in a club. I had a blackout around 4 hours and i only know from my friends that they got me home and thats it. Firstly I thought it was just long hangover I was feeling very weird I was confused and like my mind was only partly conscious. My vission is also being weird its like unfocused and i have to focus really hard to see. My mind is also slower than normal. I would be really thankful if anyone with similar problem could share their experience and how they got better. Other than that I dont have any problem like depression or ADHD. I only know that i have high levels of bilirubin but i had blackouts before from alcohol and i was ok. Before that i would drank only once a week. I dint have any problem like this before alcohol.I just want my old self back i cant work like this no more. I feel like its getting worse. Thank you for reading this