Blunders & mistakes

Hi, just curios when analyzing a game of chess after my game. it will come up and say, mistake or blunder sometimes, and then show me a "better line", (which i don't necessarily believe is better)how accurate are these.?because some of my "mistakes" and "blunders" i have had every intention of doing and they have led me to wins in short times, not because of opponents mistakes, but what i believe is a fairly forced line...  I do not have any examples unfortunately..

Or is it the fact that i'm still quite a low ranking and any higher ranking player would absolutely destroy me from these positions? Ive played enough chess to be able to handle myself, dont lose many games v friends ect.

Like would carlson have mistakes and blunders in his chess games analysis on chess.com that he had every intention of doing?

Cheers in advance,, just curious

Yu didnt give any examples, so im not sure mistakes, and blunders youre referring to

r2qr1kQ/1b3p2/p1npp3/1p4P1/4P3/2NB4/PPP3P1/1K5R b - - 2 19

how do i put a game up? to show a situation?

so move 13, bishop  xh6, first time i analysed it, it was a blunder, (when i did it again to try to work out how to add it to this post, it became only a mistake).. But either way. i dont really consider it so as it crushed my opponents kingside defence