It’s a team game, sometimes as DPS you can have an amazing game followed by a terrible one. All dependant on your supports and tank doing their role correctly. Sometimes I totally pop off, because my supports know how to position themselves, and are always there when you need them because they can read the situation, other times the support plays like they’re wearing horse blinders and all they can see is the tank that doesnt need healing.
Same for tanks, sometimes you have an amazing tank that knows how to take space, and when to back off. Other times you have a dva, ball or roadhog flanking like they think it’s still 6v6.

You cannot 100% carry a team unless you’re playing with bronze players. I had a match in gold vs a GM widow who was doing a bronze to gm stream. We destroyed them. How? I was playing tank, got everyone on voice chat, and I gave directions to the team and we basically just line of sighted the widow one trick the entire game, so it was a 6v5.

I’ve had similar results against a GM ball in silver, but I was dps back then. All I had to do was counter pick him lol.

Against a coordinated team you cannot hard carry, even a smurfing GM couldnt beat gold players with just a little bit of teamwork.

Yknow they say don’t blame your team, blame yourself, but if your skill level is above your MMR it usually is your team to blame.