I'm losing 300 hair strands a day and even more if I shampoo or oil them, what should I do?

I'm 22 years old female and so annoyed everytime my hair falls.

Please help!

I started to eat boiled eggs, oranges and fruits recently, will it help?
I'm losing 300 hair strands a day and even more if I shampoo or oil them, what should I do?
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