What's the best way to deal with constant dread? I deployed code after following every procedure, got every kind of thumbs up from QA and now it's my fault our 2012 admin site borked. Should I point out all the obvious flaws (again), or should I give up on our stagnant-ass developers and systems?

The fear of showing off anything new is crippling. I wrote up a Pyton API to hook into our current pipeline over lunch breaks but am worried if I even raise it as an option it'll just be cast aside and lost to time, regardless of business value.