Just let it go... my PB is just shy of 5lbs but I have hooked 2 bass (That I actually got to see) that would have easily went 8+ and I lost both.
One was with a oxbow bomber square A, I was ripping it through grass and thought I hit a clump of grass because it felt like I was reeling in dead weight and I look down and I see probably the biggest bass I've ever had on the end of my line, I got her all the way to the boat and then the hook popped out... honestly I didn't set the hook good because of the fact that I thought it was grass, had I set the hook I probably would have landed her...
Since that mistake I set the hook into anything that stops the vibrations of my crank baits, sure most of the time its grass/stumps but every now an then I hook a bass that I could have bet money was grass or a stump. My point is I learned from my mistake and you will too, that'll probably be the last time you make the mistake of trying to horse a fish when you shouldn't!
You may think it will "haunt" you forever, that's what I thought too, but after awhile it just turns into another memory and not necessarily a bad one.