Male Baldness Info

I guss i had aot of hair fallout through the recent year do to alot of gel usage. I dont know if its male baldness or anything. Nobody in my family has ever experienced that, but i have alot of hair, just not as much as i used too. Its gotten alot thinner. I have cut my hair and haven’t used any chemicals in it for a while, hoping it would start to comeback. What can i do, to get it to grow thicker?

I’ve been shaving my head since 1997, I love to keep it smooth, I however am not suffering from male pattern baldness or anthing like that, I just hate hair or stuble…can any one help?!!!