make my own character

i want to know how to make a personal custom character, in 3rd person, not a sphere but a person or animal, or anything i can make myself. the default is a construction worker, but i don’t know how to change t or make a new one. i don’t care about how to animate it yet, i know how to work the controls for 3rd person, every time i ask this question i get like 50 different results none of which answer what i want to know. just tell me how to make a character. Infamous has “Cole” assasins creed has “Ezio” i want my own.

Get a modeling app (Blender is free) and model a character. It is not a trivial task though.

Just google “Blender character modeling” and you will find several decent results. If you use any other modeling application, simply search for that.
For example: http://cg.tutsplus.com/tutorials/blender/character-modeling-in-blender-basix/

Once you modeled it, import it into Unity. Next, you might have to look into character animation, as a simple character model without animations won’t do much.