SCMDS

Sakura is mainly Tsunade's student but I imagine Kakashi didn't just neglect her and he also trained her after Sasuke and Naruto left.

Sakura became the genjutsu master that was hinted at in canon but went nowhere.

She can also use many elements. Not at the level Sasuke uses lighting or Naruto uses wind because she doesn't have enough chakra, she can't reach those highs but she has a stronger basis.

The byakugo seal and the superstrength was invented by Sakura, not Tsunade (I imagine tsunade as a wood user and someone with Hashirama's regenerative skills, therefore much more powerful than in canon). Sakura needs to compensate for her low amount of chakra, Tsunade I imagine as someone who doesn't have that need.

I swear I love Kakashi, but I feel if he had died along the way it could've made sense. There were very few deaths considering this is a story about military villages and well, again, I'm just going by feeling, not logic (Konohamaru, sorry, I picture you dying too). So, as Kakashi's main student Sakura got his sharingan. She became a very powerful an famed shinobi.

I do not like or accept sasusaku. I love the idea of Sakura and Sasuke loving and getting along with each other, but as good friends. Sakura should've given up on any romantic feeling for Sasuke early on. Which doesn't mean she should stop loving him, just not romantically. If she marries someone I imagine it being some made up character she met at the war or something.

I imagine that even if it hurt her, she actually went along with her plan of killing Sasuke. And just like the Hinata vs Pain situation, I imagine Sakura doing a better job than in canon instead of getting defeated and saved so embarrasingly. Not being at the same level as Sasuke, but losing with dignity.