I am too punctual, and that’s my pros and consblem. I am too punctual, and that’s my problem.

You could also say: "I'm very punctual, which is good and bad." Since you said you are "too punctual", it's clear you mean it as a negative. "Very punctual" could be positive or negative in meaning.

I am too punctual, and that’s myboth a pros and a cons. I am too punctual, and that’s both a pro and a con.

Being punctual is one "thing," so wouldn't be spoken of in the plural sense (pros and cons)

The other day, I reacwent to thed station to smeet my friends, but I was one and a half hours earliery. The other day, I went to the station to meet my friends, but I was one and a half hours early.

"Meet" and "see" are both fine here, but "meet" sounds better. You can emphasize the surprise of your problem with "but". You wanted to meet your friends "but" you were too early!

The other day, I reachedwent to the train station to smeet my friends one and a half hours earliery. The other day, I went to the train station to meet my friends one and a half hours early.

You need to mention the type of station. It could be a bus, subway, or train station, for example. "Earlier" is a comparison - earlier to what? "Early" can be used alone

I was able to walk around the station, so I totallythough, so I didn’'t care about thatmind. I was able to walk around the station, though, so I didn't mind.

Here, you can use "though" to show the contrast. For the last phrase: "so it was no problem" and "so it didn't matter" would also work.

I don’t want to make someone wait for me. I don’t want to make someone wait for me.

You can also say, "I don't want to make anyone wait for me." The meaning is about the same.