Two New Concepts Learned

They are kind of obvious now that I've heard them explained but thought I'd post them here.

1/ Balance where necessary, no more
Recently I've learned so much about the theory of the game and balancing lines but I have been making the mistake of trying to balance in spots where it is not necessary because villain's ranges are either value heavy or bluff heavy. In these cases we must also play a polar range and not worry about balance. For example, when playing against c-bets (which are almost always very bluff heavy) we should not be folding too often.

2/ Don't telegraph your strength unless it's entirely necessary
If we're in a spot where we are unlikely to be bluff raising very often we should tend to flat our entire range as we will get extra value from playing later streets rather than have our opponent fold knowing that we must be very strong. For example, we open in middle position with KK and the small blind - a pretty tight regular - 3-bets us. We are pretty much never bluff 4-bet raising in that situation so it is better to call with our hand (and the rest of the range we intend to play).

Yikes. God, sometimes I horrify myself. Tired and a little tilted after losing two stacks to set over set I was in a four way pot and the board ran out 999KK. Everything had limped around all the way down so I overbet shoved with 44 deciding that everyone was splitting but that if anyone folded Id be getting free money. Betting as much as I did was totally unnecessary and when I was snap called by a slow played king I just cried. I dont mind my thinking, and a 1.5 or 2x overbet would probably have been profitable in most situations like this. Betting what I did is just a massive spew. It will take me a lot of hands to claw that back now. Sigh, I really cant believe I could have made such a ridiculous and fundamental mistake. My understanding of the game is prob better than 95% of 25NL players and yet I still behave like one of the 95%. Anyone else ever just spazzed out randomly as if you totally lost your mind? No more play today, I need a breather after that calamity.