Is it necessary to repeat prayers, fasts, and ghusl due to ignorance of the rulings of purity (tahara), committing masturbation, and engaging in sexual practices in childhood?

The discharges could be semen or something else. Ghusl (ritual bath) is only obligatory if it is semen. If one prays without ritual purity, the prayer must be made up according to the majority of scholars. However, some are of the view that if a condition was omitted due to ignorance, there is no blame on the person. Fasting in a state of janabah (major ritual impurity) is valid, and its validity does not depend on ghusl. A sufficient ghusl to purify oneself from menstruation and janabah requires intention (niyyah) and the application of water to the entire body. Engaging in sexual activity before puberty carries no sin. After puberty, it is considered a sin, and if it involves penetration, it is considered zina (unlawful sexual intercourse). Its reprehensibility increases with maharim (unmarriageable kin). Istighfar (seeking forgiveness) and righteous deeds are obligatory.