All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad is His slave and Messenger.
Dear Brother!
We advise you to return to Allah, The Exalted, and to repent sincerely to Him, since death may come unexpectedly upon you while on disobedience.
Know that bad environment and having bad company are the most dangerous factors that have bad influence on one's religion. So, a person sees evil and deems it easy, and bad friends actuate him to do so step by step.
Allah, The Exalted, warns us from committing misdeeds, following our whims and the devil.
Allah Says (what means):
• {O you who have believed, do not follow the footsteps of Satan. And whoever follows the footsteps of Satan - indeed, he enjoins immorality and wrongdoing.} [Quran 24: 21]
• {Indeed, Satan is an enemy to you; so take him as an enemy. He only invites his party to be among the companions of the Blaze.} [Quran 35: 6]
Thus, our advice to you is to have a good company and avoid bad friends. If you can return to your homeland, you are advised to do so, since this will help you to be steady on your religion, the dearest "capital" of life.
We have deduced from your question, thanks to Allah, that you have a live conscience that blames you for your misdeeds.
This, in fact, is a great divine blessing that only those whose hearts are alive and whose souls are vivid, have.
We draw to your attention and remembrance Allah's statement (which means): {Say, “O My servants who have transgressed against themselves [by sinning], do not despair of the mercy of Allah. Indeed, Allah forgives all sins. Indeed, it is He who is the Forgiving, the Merciful.” And return [in repentance] to your Lord and submit to Him before the punishment comes upon you; then you will not be helped.} [Quran 39: 53-54].
Finally, we pray to Allah to help you to be steadfast on His religion and to grant all of us a good end in this worldly life and the Hereafter.
Allah knows best.