What is the ruling of Islamic law on someone staying awake all night, and what is the ruling on his constant tardiness for work due to his inability to regulate his sleep, and what is the ruling on his excessive smoking?

We ask Allah to rectify the questioner's condition and advise him to strengthen his resolve to change his situation, even if it requires a bitter medicine. This can be aided by changing his lifestyle, such as accompanying the Quran by reciting, contemplating, and listening to it, maintaining prayers at their prescribed times with the congregation, seeking Allah's help, committing to patience, and sleeping early. Most importantly, he should quit smoking and stay away from anything that leads to it or reminds him of it. He should also avoid friends, programs, and media that do not help him succeed and adhere to his religion. If not compelled by necessity, he should leave the country he is in for a Muslim land where he will find assistance in obedience and righteous company.