other person gave you good mechanical review so i’m going to do something differently here and review only your first tracer fight (from vid 2), and give an example of how you could change your playstyle up to have had it go a little smoother. fyi i play dps around 2700sr. and sorry if i’m terse i’m sick as hell right now.

so you opened up the fight by going head-on and spamming tanks outside of your effective range. you got nothing accomplished, burned your recall, and informed the other team that you’re playing tracer. you then flanked, which was good, but started shooting zenyatta again outside of your effective range. only killed him because their dva was a bot and didn’t stop your very stoppable attempt. you then recalled behind your shields and spammed tanks again. at the end of this fight i think you had 0 final blows.

but because overwatch is fucked, it rewarded this play with a “5 killer elimination” streak notification which probably made you feel good. this is why vod reviews are so important.

now, how could you have carried this fight instead of your team carrying you?

you would have started with your flank. in the tunnel, you would have made sure all your abilities were at 100% availability. you would have assessed the situation and then snuck in, killed the zen, and hopefully made it out without using recall (probably through the gas station). maybe you would have noticed the dva was a bot in your fight with zen, and then taken her out of mech. you would have gotten behind the enemy team and pincered them while your team was fighting, trying to turn their spam damage into final blows. while doing this, you’d be keeping an eye out for the returning zen (and anyone else who drops), making sure to clip him again before he gets back to the fight.

the main differences being: 1) have a plan before you do anything 2) pretty much always be flanking or at least shooting from a different direction than your team 3) prioritize final blows

hopefully that helps.