So if u can see the photo, my center at my symmetry was wrong, anybody can help me?
2 Answers
As mentioned in the comment by moonboots, the origin of your character might not be in the center of your object. The origin is indicated by the little orange dot in the viewport.
In Object Mode
you can set the origin. Select Object
→ Set Origin
→ Origin to Geometry
in the menu of the viewport to center it. This should fix it.
In addition to the comments and answers above, you need to set the origin (the orange dot) of your mesh in its centre in order for symmetry to work properly. The easiest method would be the one indicated by Blunder (i.e. setting origin to geometry). However, it does not always work as wanted and, therefore, you may want to specify the exact origin of your mesh. I do this by positioning 3D cursor at specific vertex and fixing the origin to 3D cursor position.
Select the mesh
Go into edit mode
Select a vertex along the central line of the mesh
Press
Shift+S
and swipe toCursor to Selected
Switch to object mode, select
Object
→Set Origin
→Origin to 3D Cursor