Sorry about all this Sarath. I hope you get a chance to hold your job.
But if not, do not go for a full blow up. Do not let your addiction get it all. You can choose for not picking up that first one!
See it as your rock bottom to change your life for the better instead of drowning yourself in sorrow.
See yourself as a person who is sick. If you are a bit like me then if you are sick you Google first about the diagnose, buy some selftreatment medicines and give yourself some rest to heal. If that didn’t help you ask advice to a doctor for help.
Do the same with this. You tried yourself, but it didn’t help. So maybe join AA? There are also online meetings if you like.
Here you find some
I hope you get a second chance for your job 