While we're at pronunciations:
If something is your strong suit it is pronounced "fort" not "for-tay". One is a fencing term from French and the latter is a musical direction for loud from Italian (e.g. the full name of the instrument is pianoforte, which means soft-loud; because before that it didn't matter how dynamically you played on keyed instruments, they played one volume - looking at you, harpsichord).
It doesn't make sense if you say something is your "for-tay". However, it is so ingrained in American English that if you say it correctly people will probably think you're stupid. So...either continue on with "for-tay" or just say "my strong suit". Or come face to face with the brute fact that you are an insignificant soylent-green slurping speck and couldn't possibly be good at anything because you aren't worth anything. Either/or. Your choice.