Hair Loss Help

Hey guys, my hair is good as of now but my hairline is kind of thinning a little which I don’t want, it’s moved like a little back which isn’t noticeable to anyone other than me. How I do grow it back to where it was before once again it’s a very tiny amount but the hairline also dosent like full like it used to. I’m not sure if baldness runs in my genetics, but my dad is balding but no one else in my family is like my grandfather and stuff. So basically I want like a preventative stack but also grow back to where it was before.

This is the stack that im thinking about doing

Dutestaride 3-4x a day, I know it dosent sound like much but I heard that there is not much of shedding phase and it grows back hair fast. People also say it’s a really good preventative. Please give input, thanks