Alya Sometimes Hides Her Feelings In Russian - Chapter 7 Police Officer, This is the Person 2

Хватит молча глазеть на меня
“Enough staring at me silently” would be a more literal translation.
Хватит means “Enough”
Note that глазеть is a bit offensive way to describe the act of looking at smth.
молча – silently
на меня – at me
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Забудь всё что ты видел!
Literal raslation: Forget everything that you’ve seen!
Забудь – forget (ordering/telling someone to)
всё – everything
что – in this context it’s meaning is more close to “that”. If you remember my previous lessons you remember what else it means.
ты – you
видел – have seen
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Дурак – idiot.
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Полный кошмар
I guess the most literal translation would be “A complete nightmare”.
Полный – complete, full
Кошмар – nightmare
Though, no one’s probably going to say it this way. Either just кошмар or ужас without полный in most cases.
“Ужас”‘s best equivalent word would be “horror”.
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Сердце… почему так сильно бьется?
[My] heart… why is it beating so hard?
[My] is of course implied by the context
Сердце – heart
почему – why
так – so
сильно – strong, hard
бьется – [it is] beating
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I’ll answer any questions you have left