I am concerned about weight gain this autumn and the procedure; can I proceed immediately without a consultation?

Perhaps because it is autumn and cool breezes blow, which particularly increases appetite while activity levels decrease, I find myself deeply stressed whenever I look in the mirror because the fat on my belly and sides has noticeably increased. As the weather gets colder and we dress more thickly, it is easy to let our guard down, but I am worried that the weight gained at this time of year might turn into age-related fat or solidified body fat.

I am looking into diet procedures or injection therapies to lose weight urgently, but I feel so nervous and anxious about actually going to the clinic that I find it difficult to bring myself to go. I am very curious whether a one-on-one in-person consultation with a specialist is mandatory for the procedure, or if it is possible to skip or simplify the consultation process and receive the treatment immediately. Since a customized plan tailored to my body type, fat thickness, and health condition is essential, I am concerned that proceeding without a consultation might lead to issues regarding effectiveness or side effects.

If you have experience receiving weight loss treatments due to similar concerns, I would appreciate your advice on how the consultation process works during a hospital visit and whether a consultation is mandatory for the initial visit or follow-up visits!