QUES: Hi my name is Jakie and I am 22 years

correct the punctuation.

CORRECTED: Hi, my name is Jakie and I am 22 years.

QUES: our clearest recollection of Professor Chrystal stands out from a mist of dingy lecturerooms in the old buildings

correct the punctuation.

CORRECTED: ...our clearest recollection of Professor Chrystal stands out from a mist of dingy lecture-rooms in the old buildings.

QUES: Find Giftssoft in the list of extensions and click the Trash bin next to it to delete it

correct the punctuation.

CORRECTED:
Find Giftssoft in the list of extensions, and click the Trash bin next to it to delete it.