Does my feeling that I am displeasing Allah due to the continuous intrusive thoughts about marriage that plague me, and the emission of white discharge with an unpleasant odor, mean that I am displeasing Allah, and what is the solution for such a situation?

It is recommended to supplicate to be rid of satanic whispers (waswasa) and the evil of the self and desires. The Prophet, peace and blessings be upon him, guided us to seek refuge in Allah and say the supplication: "O Allah, Creator of the heavens and the earth, Knower of the unseen and the seen, Lord and Sovereign of everything, I bear witness that there is no god but You. I seek refuge in You from the evil of my soul, and from the evil of Satan and his polytheism (shirk)."

Mere psychological whispering in matters of belief is pardoned as long as it is not acted upon or spoken. The servant's fear of these whispers is a sign of strong faith.

The cure for waswasa is to completely ignore it, because it comes from Satan who wishes to lead the believer astray. Thinking about sexual matters without manual action is not forbidden masturbation, but persisting in it may lead to what is forbidden.

To get rid of these thoughts, it is recommended to occupy one's time with obedience, increase fasting which curbs desire, avoid seclusion, lower the gaze, recite the Quran, and associate with righteous women.

As for nocturnal emission (ihtilam), ghusl (ritual bath) is not obligatory unless semen is discharged. The semen of a woman is characterized by being yellowish and thin, having a distinct smell, and causing pleasure and relaxation after its exit. Nocturnal emission is not a sin because it is involuntary. It is recommended to supplicate for a righteous husband, and to maintain the hijab, chastity, lower the gaze, and avoid free mixing.