Hello, Nicole. I admire your enthusiasm to improve your English.
Below are some corrections. Keep learning!
Indirect questions are very polite questions.
>>Correct
Or>> Indirect questions are very polite forms of asking something.
We can use these questions for upper class people or unfamlier people.
>> We can use these types of questions when speaking to upper-class individuals or people we are unfamiliar with.
They are very useful expressions because it can make polite people.
>> They are very useful expressions because they help us sound more polite.
Also, these are not make people unhappy.
>> Also, they dont make people feel uncomfortable.
I prefer using indirect questions myself.
>> I personally prefer using indirect questions.
Becuase I think that polite is the most important virtue for people.
>> Because I believe politeness is one of the most important virtues a person can have.
So I try to use these expressions for everyone.
>> So I try to use these expressions with everyone.
But I like direct questions when people say to me.
>> However, I also like direct questions when people speak to me.
I am not angry these expressions because it is honest expressions and helpful for me
>> Im not upset by direct expressions because they are honest and helpful to me.