What is the religious ruling and your guidance for a girl who suffers from intrusive thoughts, uttering abusive words towards Allah unintentionally, despite her faith and knowledge of Him, and who feels depressed and lost after recently stopping masturbation?

These whispers will not harm you as long as you dislike them. Strive against them by ignoring them and seeking refuge in Allah from them. You will be rewarded for your struggle against them. Treat depression and distress by seeking refuge in Allah Almighty, frequently remembering Him and supplicating to Him, consulting trustworthy doctors, and performing Ruqyah. Praise Allah for your repentance from masturbation, and you must not return to it. Have a good opinion of Allah, entrust your affairs to Him, and rely on Him.