history: Last semester I made an A in every class I took. I have never done that before. I worked really hard for that. I made in A in all of my classes last semester. I have never done that before. I am really happy with myself.  Congratulations! That is great_comma_ definitely will help your gpa.  Plan on doing the same this semester?
current: You bet. I will continue to work hard. The payoff is well worth it.
next: That's the way to do it, you will be thankful you did in the long run!