I am considering square jaw Botox.

Hello. I am writing this post because I am so worried about my square jaw lately. Every time I look in the mirror, my jawline seems to be getting more angular and prominent, and I am incredibly stressed about it. People around me casually suggest I try Botox since it is a simple injection procedure, but I am scared that I might experience side effects or that my appearance might look unnatural. I am hesitating even more because I have seen reviews mentioning that cheek hollowing can occur as a side effect of square jaw Botox.
On top of that, I've heard that once you get Botox, you have to keep getting it done periodically, so I'm really unsure if this is the right fit for me or if it would be better to just manage it with something like lymphatic drainage massage. Is the effect of square jaw Botox really dramatic? If there are any of you who had similar concerns before getting it, or those who are getting it consistently, please share some advice or real reviews!