What to if i am soon to be having cosmetic sugary, is there any tips that can help me prepare for it?

Not enough info: It depends on what part of the body will have surgery. In general you want to minimize infection, so keeping the area clean would apply. Avoid blood thinners if cleared by the primary care doctor. Good wound healing required good nutrition.

You should absolutely speak to your plastic surgeon prior to surgery to get their recommendations on specifically what you should be doing before and after surgery. Only your plastic surgeon who knows your specific case should be advising you on this topic!