Does jacking off make the process of puberty slower?

Unlikely to matter: Masturbation is a topic often frowned on by various segments of society & seldom discussed openly. If done to the point that the individual does not have time & energy to get involved in normal peer activities it is a negative. Any obsession detracts from your healthy emotional growth. However, the occasional event does not make any difference in your physical growth.Ditch any guilt, it is normal.

No, it does not.: The onset of puberty is typically what initiates masturbation in most children. Puberty is governed by Gonadotropin-Releasing Hormone, which is unaffected by masturbation. People who masturbate daily and those who masturbate infrequently will all progress through puberty, unless other hormonal issues stunt the process. Therefore, masturbation is unrelated to the speed or duration of puberty.