Why Am I Thinning And Can I Reverse It?

[thinninghair123]

I've noticed I had a thin crown since I was 16 when people pointed it out to me but I am 20 now and it seems much more noticeable. My friend pointed it out to me a few days ago when it was raining and my hair was wet and he could see my scalp. Not just my crown either, like if I run my fingers through my hair and adjust it I can see my scalp well. I have always showered every day with hot water.
Is there any way I can fix it/reduce it?
Am I definitely balding or could I fix it with diet/washing my hair less with no pressure and cooler water? Could it be stress?

 

[Alphalete]

propecia minoxidil nizoral

 

[Murkey Thumb]

Its unlikely to be stress unless you are physically pulling it out. You need to go see a good trichologist to get a proper diagnosis before starting any treatment at your age.