I get wrinkles between my eyebrows because of my habit of frowning. If I get facial expression Botox, will my expression not look fierce?

I have a habit of unconsciously furrowing my brows when looking at my smartphone screen or concentrating on work, so I've noticed faint vertical lines forming between my eyebrows. Also, horizontal lines appear on my forehead whenever I look up, and I'm worried these might turn into deep wrinkles later on, so I want to start taking care of them as a preventative measure!

I am planning to get Botox for my forehead and glabella wrinkles at Maypure, but I am slightly worried about potential side effects, such as my eyelids drooping heavily or it becoming difficult to open my eyes, which could make my expression look fierce.

I am curious if a customized dosage treatment is available that effectively eliminates wrinkles while maintaining your natural facial expressions, and if the effects start to appear a few days after the injection. Please also let me know if I can visit on my way home from work, receive a consultation and treatment on the same day, and go home immediately.