I never ever mean running on the treadmill. Your 300m tempo runs don't suggest you can run under 60s actually. Time your 400 if you can run under 60s then you are correct and your speed endurance is not the problem. In that case I would suggest you move up to the 800m or 1500m because you will be more successful there than at the 100m.
It's not necessarily because your squat is low (squatting is not a prerequisite for speed) but something seems to be wrong with your ability to accelerate. Strength training will help for sure but IMO bounding will be more specific and should be prioritized. Also you probably want to eat more. Additionally I would bet that you suffer from a strong case of paralysis by analysis. When you described your 100m race you seemed to remember every single moment and every transition from drive phase to max velocity, etc, etc. We run best when we react to a gun and go somewhat automatic. Often times I'll run good races and then not be able to remember parts of them. Mechanics are nailed in practice; when you race you should be in go mode. Also, understand that the 100m sprint models you read about are for a very specific class of runner. The aren't super relevant for women who hit their top speed much later than men in the race. For someone like me who runs the times of elite women but runs a very different race pattern than them the models also somewhat fail to describe how my mechanics should be optimized.
So for you it's going to be even more off. Running 14.4 suggested to me that maybe you just aren't fit enough for the 100m. Since you can run sub 30 in the 200m, it seems that is not the case but rather you don't have the power to run fast. In that case your running model would be better approximated by the race model of a young child. You probably aren't powerful enough to benefit from a drive phase and probably are capable of accelerating for almost the entire race. Thinking about driving to 30m and then trying to maintain is probably hurting you. You are maintaining when your body still could be accelerating! That's why I have told you over and over to throw out all this drive phase crap and just get out their and run 100m as fast as you can. That's all you should think about.
To be honest, when i was running the meet, and i was running at a lean, i thought that probably i was in the lean for too long so i had to start transitioning to the maintain phase, but probably you are right i can accelerate a lot longer, so maybe i will try practicing my acceleration so i know when i should be at top speed. I probably get to around 40m and am still leaning and thinking about getting up.
i should concentrate on the 800m or 1500m
noooooo thanks, i do not want to do that, unless it will help in my 100m time then i will be willing. i already jog 1200m warm up before sprint work.
I was thinking of doing bounding on grass, but last time i tried that and i had pains in my shin so i was thinking i have to get my squat level up to 1.5x bw + to start any sort of plyometrics.
I will try and eat more.
paralysis by analysis - i do have that problem, but not during the running, preparation time, but not at the event also.
I don't analyse when i am running, i just run as fast as i can, but am able to remember every single thing that happened maybe because i am not moving fast enough and every single mishap that happens it's always in my mind after the race, it always seems to be at when i am at up right phase that everyone surpasses, at drive phase i'm about level some ahead but at up right they just pass me way ahead.
I will time my 400m and see what happens, i hope i get under 60s but do not want to compete in the 800m to 1500m too much for me.