We strongly urge you to avoid it. When working with an electrical panel, you are dealing with live energy at high voltage levels. In other words, it's an extremely risky process in which a single error can result in significant injury or even death.
Furthermore, the procedure of replacing an electrical panel is rather difficult. If you are upgrading a breaker box, you will most likely be installing new wires as well as an electricity meter. Working inside an electrical panel is risky and should only be done by a professional and certified electrician.
If your breaker box needs to be replaced, contact a licensed electrician like Precise Building Services. We have the knowledge and skills to safely replace your electrical breaker box.