Son is 6 never been married n never once has he came2 see him.wut age n wut I need 2 do 2 g custody?

If you're over18 and can financially support the boy, and if you have a stable home, even with your parents, you can probably gain custody due to the fathers indifference and your ability to provide a stable home evironment. However it will have to go to family court, so put your house in order with the advice of an attorney with family court experience. If under 18, your parents or even grandparents will need to be involved as possible guardians until you are of age.