Thank you for asking. I can understand your concern. I as can see you have had your first couple of sexual experience. It is top early to decide whether you have a sexual problem. One must learn and master the method of sex through trial and error, and gradually. You must not compare the quality of erection that you would have before to current. Masturbation habit, your concept and expectations about sex, pornography use, past experiences, etc are some important ares to explore. A detailed discussion or consultation with expert is needed. More specific information will be needed to establish a problem formulate a treatment.