Expression: 'a lot of' (She has a lot of pressure to deal with)

[Learning_English]

She has a lot of pressure to deal with.

She has a lot of apples.

Both the above sentences sounds ok to me.

So, I think, we can use the phrase (a lot of) in both countable(apple) and uncountable(uncountable) nouns.

Please help me.
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Please let me know if I have made any mistakes in any of my sentences.

[Mister Micawber]

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You are right. A lot of apples, trouble, sugar, etc
.
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Native English teacher at Mister Micawber's