I appreciate for giving this good question about sex education. In school children learn about sex education as you mentioned in theory. When it comes to the recommended practices for men exclusively regarding their masturbation one has to consult an expert sexologist.
Next Steps
Give details about your practice and your physical condition to an expert sex consultant , which will help you to have a clear idea about yourself and your sex health.
Health Tips
Availability of health tips in the media like YouTube and ebooks are surplus. So do not judge your health based on such informations.