Thanks for your query.Based on the facts that you have posted it appears that you have problem of Erectile Dysfunction
and Premature Ejaculation
This could be due to smoking that you have been addicted to since last 10 years. However you need to get evaluated thoroughly to find out the cause of Erectile Dysfunction and premature ejaculation .
Please consult qualified Urologist
for clinical assessment and investigations.Do not worry this can be cured by Counselling