Edited, as I didn't originally leave it as an Answer, and I can't delete a comment.

"Could you give me some *advice* . .."

Before learning past conditional, it is necessary to learn rules for Past Perfect (form). When you speak about something that could have happened in the past, but it did not, you use THE THIRD CONDITIONAL: Let’s divide it into two parts: If sentence: Subject plus Past Perfect Main sentence: would have+Past Participle !Revise Past Participle; If I had studied, I would have passed the exam. (But you had not studied and you had not passed the exam). I hope this was helpful :)

(Past conditionals: the woulda-coulda-shoulda thoughts we have, predicting a future that we can't possibly know that would have happened but like to think it would have.) If you had been on time, we would have made the train. If only you asked her out, she would be dating you and not your friend. Had you been a little nicer, your boss would have given you another chance. If you had helped me around the house today, I would have had time to watch a movie with you. If you didn't get drunk last night, you would have felt fine today.