you should actually list any and EVERY thing that u went through when you werent performing well....trust me i should know cause im going through the same situation as u are...but i have a psychological condition so i can include that in my appeal and my midterm grades this summer have been excellent.

Listen, all u need is to be honest in front of them, own up to your mistakes,tell them how much it means for you to stay in your uni,tell them about your plan to get you back on track( this point is very important).

If possible try to goto your appeals meeting in person instead of just sending a letter. This shows how serious you are.

BEST OF LUCK and GOD BLESS