Learn English – I am waiting for you for a long time

Take a long time is an idiom, a special meaning of take referring to duration of some event.

• The train took a long time to pass.

It's one version of the Event take Duration idiom

• Making egg rolls takes all day ~ It takes all day to make egg rolls.

Take too long uses the same durational sense of take, but the too marks it as a Negative.
Too Adjective means 'so Adjective that Not S, where Not S is some negative outcome.

• He was too sick to come. = He was so sick that he didn't come.

Thus take too long means 'take so much time that something is wrong'.

• The train took too long to pass.

means that it was slow, or it was late, or the drivers honked their horns at it, or the speaker was irritated, or something -- details are not always specified. But something was out of expectation.

"You are taking too long."

Yes, "taking too long" and variations like "taking a while" and "taking a bit" are common expressions in English.

Does the phrase above can be use?

"Can the phrase above be used?" or "Can the phrase above be of use?"