I've never doubted myself being an ESTP.
Even though I tested as ENTJ a decade ago, I can see why that happened.
I'm 60/40 on S/N, and 52/48 on J/P.
So, I could very well claim ESTX, or maybe even EXTX depending on how accurate the test I took was on S/N.
But, the ESTP type description (the positive non-used car salesman parts) are the ones I identify with very easily.
Same for my Enneagram being 7w8 sx/so - he description fits me VERY well.
I would not mind if I were an ENTJ, or an ESTJ, aor an ENTP, as all are great types to be just like the other 12 of the 16, all have their gifts.
I'm just very comfortable with being an ESTP, because I have seen the many ways I have historically engaged things in the style of an ESTP, and I see it in my current endeavors. I'm a happy go lucky mover and shaker.
Don't doubt yourself in any capacity. Take a few tests, read a few type descriptions, and find out which one BEST fits you, and run with it for awhile, and see what happens. It's just four letters, they do not determine the entire essences of your being.