What should someone do who has lost hope in Islam due to the prolonged duration of difficulties (13 years), such as not finding a wife or a job, and the devil preying on him, and he lives alone without a life partner, job, money, or social interaction?

Do not blame religion for the harshness of life, for religion has no connection to the bitter reality that surrounds you. It is a test and a trial from Allah. Reflect on the verses of trial in the Quran, and that wealth and poverty do not indicate Allah's pleasure or displeasure. Look at the calamities of others to make your own calamity seem lighter, for there are many types of afflictions. Your happiness lies in contentment, peace of mind, and conviction, not in money. For those who seek the Hereafter, this world becomes insignificant. Seek out people of goodness and righteousness to help you in obedience and righteous deeds.