Neuropathy problem. Any good medicines!

Hello sir/madam...I am 28 yrs old and I I was a heavy drinker and smoker from 2015 to 2019..In September 2019 I started getting a problem in body balance and coordination and tremors also..I consulted a reputed neurologist and said him about my problem...He explained me the things and gave me tabs methycobal 500mcg,folvate 5mg,becozinc,betacap tr 40,rivotril 2mg...I started taking his tablets and got alright in just 4 days..then again I started smoking heavily thinking that I got alright..but the same issue started again...and after few days I started consuming alchol again but not regularly...2,3 times a week..but whenever I consume alchol the next days will be very horrible for me like body balance and coordination problem and all...So kindly tell me what I am going through exactly and what's the solution how much time I require to get out of this...also suggest me any good medicines Thank you so much...