Well, Mudd, at least you are out there and seeing game. Yes, you made a mistake (everyone does, just some won't/can't admit it - HA!). Now you have the opportunity of reflection and the chance to make the mistake part of the learning process.
To poorly quote Ted Nugent (don't always agree with him but I do on this), "We go hunting to have an encounter with game". You had an encounter with game. Hard to ask for much more in the woods. You did get what you were seeking, that encounter. Not every encounter ends with backstraps. Sometimes the game is too far away (or perversely, too close), sometimes we make a poor shot, sometimes we don't have a shot.
Congratulations to you for being in the right place at the right time to have that encounter with game. Hopefully the next encounter will result in backstraps for you.