Which one is more pleasurable, "masturbation" or "sexual intercourse"?

When masturbating, the whole process is controlled by you. You don't have to worry about paying attention to other people's feelings and desires to coordinate your actions. You can do what you want and for how long. So it's normal for you to be able to orgasm in the way that makes you happiest. There are many reasons for the lack of pleasure during sexual intercourse, such as the stereotyping of sexual behavior, the loss of novelty, the lack of sexual communication between the two people that leads to proper sexual stimulation, the lack of tacit cooperation between the two people, the fatigue caused by the intense exercise during sexual intercourse that affects the pleasure, etc.

However, there is a difference between the pleasure of masturbation and the pleasure of sexual intercourse: masturbation is a solitary behavior of a person, it can only temporarily eliminate sexual desire, and it is a pure physiological activity, while married life is accompanied by spiritual activities with many contents, which plays the role of conveying the information of sex and love between two people, increasing intimacy, security and mutual attraction through physical contact, etc., thereby obtaining greater physical and psychological satisfaction, while after masturbation, one may become depressed and heavy psychologically. So, it doesn’t mean that the pleasure of masturbation must exceed that of sexual intercourse. In your case, as long as you improve your sexual intercourse techniques, methods, etc., you can still get greater pleasure from sexual intercourse.