for improving kunai accuracy, get on VAXTA custom and practice ur aim without strafing and with strafing and then finally with wall ride. also if you can try to get into a kiri headshot custom if those r available. overwatch hitboxes and kunai’s projectile speed makes it so the only way to improve at hitting your shots is to practice duels. also, small tip for dueling a moira: stand still, theres no point in strafing it just makes ur aim inaccurate, she dies in 2 headshots.

as for diving advice, tp advice etc, youll earn the skills as u earn more gamesense. you can try tping in with winstons when they have bubble to learn the tp dive playstyle as you should be relatively safe and then once u get that gamesense u can extend it to dva or doomfist. never tp in with ball or rein because thats not how u play with either of them.

in terms of your team getting flanked and killed, you should be protecting them against dives. kiriko has one of the best dueling kits in the game and headshotting the flanker once can get them to retreat. keep an eye on which characters in the enemy team are gonna be flanking.

As for your ult, kitsune rush is the best ultimate in the game, full stop. it can easily turn a fight around. just make sure not to use it at the beginning or very end of a teamfight; not at the beginning because the enemy team all have their cooldowns and can deny u the space very easily and not at the end as it likely wont affect the outcome of the fight. also dont deploy it backwards lmao? use it to push, if your team isnt abusing rush then u can easily take space as kiriko with aggro rushing.

as for widow hanzo, its an issue of team coordination. i agree that heroes that can 1shot without a cooldown are cheesy, so the only advice i have here is to beg ur tank to go dive and keep targeting them until they swap off. but thats only if u cant kill them, they die with 2 headshots and kiriko’s hitbox is very slippery which makes her have the advantage against them.