turning back time

If it is as you said,I will take back what i said to my beloved girl.I regret that was not the right time to speak out my love.I can feel obviously her estrangement to me,which is not I want to see. What should I do if the time can not be turned back.

I would love to see myself in the back years of my 2nd year of graduation once more. Something in there didn't go quite as well and as a result I scored my all-time low at the semester exam. In fact, I messed up with two subjects and though eventually, in the reviews I got okay with one of them, I still had to reappear in the other subject for a second time and well, it's not a nice feeling if you know it. :( I passed the exam in the end and am relieved that I didn't have to waste a year. Still, I would definitely want me to go back in time and change that undesirable incident, or should I say accident, at any cost. It pains me all the time.