23 and badly receding

[Nick47]

Hey guys
I've just turned 23 and for a few years now my hairlines just been receding more and more and I've tried looking into a treatment, can't afford any of them and don't want to go to a hair treatment clinic as I've read they rip you off for the same medication you can buy yourself?
I've read so many different types of medication and shampoos and foams, I'm just so lost and confused!
What on earth am I supposed to buy/do to stop or even regain my hairline. Even just to prevent it receding or slow it down...I've read so many different things 😭 posting a pic of hairline so people can see.
Thanks guys,
Nick