True, it is very tough especially if you are not actually aware that you are being prideful even if it is affecting your emotions and thoughts...

But the important thing is, is that you're reflecting and admitting that you may have made that wrong choice. Now all you can do (since everything is already done and over with, brooding is pointless) is learn from it, or fix it if it's at all possible. We all make mistakes and that is perfectly normal, but it is still up to you to learn from that mistake and try to right the wrong!

Hope this helped out at least a tiny bit... Cheers!