Disappointing dyno results

There's a not joking thing I have with my boss right now and remains forever. If I see a 268 weak *** comp Chevy grind Mopar cam in the shop I'm snapping the junk over my knee.
To the OP.
Don't be to disappointed at least your engine still runs. I moved a few years ago and left my engine over there and paid the guy to assemble it for me.
It made some power but it didn't last long. The 1st time something went wrong was the 1st or 2nd pull on the Dyno.
Something went wrong every fuhreeekin pull seemingly. It would lose 10 HP a pull every day till it couldn't be tuned and killed the rings.
I had just about pissed off my good buddy but the engine got pissed first.
There were all kinds of craps wrong inside that engine....too much to list and to much to remember.
So nearly a year later I'll get back on the pony and ride. With better **** !
Long story short, don't just give up or just be okay with what it is... it's yours and you only live once