Hello, I hope you are doing well

SSB Interview attempt only gets counted when you go for the interview, unless you go there and attend the screening you shouldn't worry about it being counted as an attempt.

Also, there is no limit to the number of times a candidate can appear for SSB Interview. You will be in a problem only if you try to mislead them by providing false information about your number of attempts.

If you fail to clear the interview it will still be counted as an attempt, but not if you don't go for the interview.

Hope this helps.