100% agreed. The old cliche of working on your weaknesses is completely and totally wrong and belongs in the dustbin with other damaging lies like "everyone can have it all".
We used the Strength Finders at my corporation for a variety of exercises. I don't have much to say about them, personally, but I really enjoyed the Myers-BriggsType Indicator I took 15 years ago. It will help you to get a more esoteric view of your strengths and weaknesses:
https://en.wikipedia.org/wiki/Myers%E2%80%93Briggs_Type_Indicator
Ooo I alwas thought the Myers-BriggsType test was an indicator of your personality not necessary your strengths. I'll have to check it out, as I love reading about subject matters like this. Thanks for the share. ;)