For those of you who have gotten Botox between your eyebrows, how are the results?

I am looking into Botox because the wrinkles between my eyebrows seem to be getting deeper lately due to my habit of frowning. It is fine normally, but perhaps because I have a habit of frowning unconsciously when I am tired or concentrating, the space between my eyebrows bothers me every time I look in the mirror.

My wrinkles aren't very deep yet, but I'm wondering if it would be better to start managing them now, or if I can wait until they develop a bit more. I understand that Botox reduces muscle movement, but I'm also a bit worried that getting it injected between my eyebrows might make my facial expressions look too unnatural.

I don't want my facial expressions to stop moving at all; I just want to reduce my unconscious habit of frowning and see fewer wrinkles form. Even in this case, is it not necessary to get a lot of Botox between the eyebrows?

I am also wondering if I need to continue getting Botox periodically once I get it once. I know that it is effective initially but wears off over time, but I am curious if it is common to continue getting it at intervals of a few months.

For those of you who received glabella Botox for the first time, please share your experiences regarding whether the effects were natural and if your facial expressions or eyebrow shape changed!