Male Baldness Info

In January my hair started to thin out all over, and hair was falling out all more than usual. Then that slowed down, but I noticed that my hair line at the front and sides is receding.
Is there anything I could be eating or doing that is causing male pattern baldness to affect me early?

Hi, I’m a 20 year old male,
I’ve noticed that my hair is thinning all over but shows mostly on top of my head. (not at all like male pattern baldness) I wash my hair every day but my scalp itches alot and by the end of the day my hair gets really greasy and smells bad too.
is it possible that the itchy oily scalp is causing my hair to thin?? I’m really annoyed at this because I have no idea what is causing the thinning.
I understand there is always a chance that it is hereditary but in my family the men start losing the hair (not a lot) when over 50.
Thanks in advance.