Undergraduate / UT Austin Transfer Nursing Story- I never wanted to be a nurse [2]

"more sure" is logically incorrect. You are either sure, or you are not sure. Think of a glass, if is full, can it be more full, or "fuller"?

I could also find in the dictionary the work "surer" which I did not know it exists. Maybe surer would be of a better use here?

Writing Feedback / IELTS: Wealthy nations among poorer nations; 'level of export' [5]

... by doing some pro activeproactive actions. ...

Writing Feedback / IELTS, Change look is good or not? [4]

To comparedComparing us with people's presencelook ...

...paying more attention to one's appearance havehad a positive impact ...

...and then create confortablecomfortable atmosphere with ...

...that investment on our appearance havehas a good impact on...