Is going to Western countries to complete one's studies considered a sin, despite suffering from sexual obsession and the fear of not succeeding in one's studies?

The trial of desires, especially sexual desire, is a great tribulation, but healing from it is easy for whoever is truthful with Allah. To overcome it, you must sincerely turn to Allah, asking for chastity and facilitation of marriage, and seek help through patience and supplication, as the Prophet (peace be upon him) did with the young man who sought permission to commit zina (fornication/adultery). Strive to achieve the means of marriage, persevere in fasting, maintain acts of obedience and the company of the righteous, avoid stimulants of desire, and engage in sports. It is permissible to use desire-reducing medications if they do not cause harm and after consulting specialists. It is not permissible to travel to non-Muslim countries if you fear temptation for yourself, and you should try to convince your father to abandon this trip.