Is it good to go on mastrubating even after first climax is achieved and yet unsatisfied?

Neither good nor bad: Normal men, women, boys, and girls masturbate (it's universal). It is not harmful, as the body goes through similar effects during regular sex with a partner (but too much of anything may become a problem). Masturbation does not stunt height, cause acne or hair loss, make you weak, create heart problems, lower testosterone, affect virginity, lower fertility, change your weight, or damage vision.