How often do you usually get Botox?

How often do you usually get Botox injections?

This was my first time getting it, and I'm more satisfied than I expected, so I plan to continue. However, I've heard that getting it too often isn't good, and conversely, that the effects wear off quickly if the intervals are too long, so I'm wondering what the appropriate frequency is.

I would like to know if the injection frequency varies by area, such as the glabella, forehead, chin, and jaw muscles (square jaw). Also, while the hospital mentioned about 3 to 6 months, I am curious about the actual interval between injections.

I am also curious about when the effects of Botox start to appear, how long the results last, and whether the effects last longer if I get them consistently.

For those of you who have personally received Botox, please share your satisfaction level, as well as any recommended treatment frequency or aftercare tips.