I find listing my strengths easier than listing my weaknesses but nevertheless it is still hard, as is any self evaluation because I lack genuine objectivity. This being said it is a useful exercise to do as it highlights what elements of a role you would excel at.
Just as when listing your weaknesses, there are three main areas. Technical (also known as skills), such as being great at Microsoft Excel (spreadsheets) or having an advanced driving license, interpersonal, such as being great at customer service or motivating a team and mental, such as having an analytical mind.
List them now and for each strength you identify, give an example of when you have used this strength successfully (this will help you in interviews later on).
Now take another look at the list and see if these strengths would be involved with any of your shortlisted career paths. If they aren’t there’s no need to fret, it simply means you have an opportunity to develop even more strengths!