What is the way to strengthen faith and stop repeatedly committing sins, knowing that there is a desire to gain a deep understanding of the religion and memorize eight parts of the Quran, alongside practices such as talking to girls, being lazy about prayer, and watching movies?

You must sincerely repent of all sins and strive against your soul to strengthen faith and righteousness. Seek the company of the righteous, and attend gatherings of knowledge and remembrance. Safeguard the obligatory prayers, increase in supererogatory acts, and adhere to dhikr and seeking forgiveness, and repent from every sin. Remember death and its terrors, reflect on the names and attributes of Allah, be mindful of His watchfulness over you, and fear His punishment. Increase in supplication and seeking refuge with Allah Almighty to guide you to the straight path.