I met with an accident in my childhood which deformed my shape of skull by one side can i reshape it by applying pressure gently or hard over months.plz give positive response?

No: You cannot reshape the bony skull by pressing on it. The shape could be changed by a specialized team of surgeons who would cut it into individual plates and rearrange them into a more pleasing shape. The process is very risky surgery & involves a lengthy stay in the intensive care unit. There are a few places in the world that do such work. Get used to your head shape.