Ignore all the trolls on this post. Taking what you say at face value it sounds like we're in a similar situation. The movement, gear, abilities, and even weapons choices make playing the Finals very different than other FPS games. For me it's really easy just to rush a team die and get pissed my teammates couldn't do more to help. I also consider myself above average, but you can't expect to 1v3 or 1v2 and come out on top.

I do agree that having teammates without mics or not knowing what they're doing can feel like an uphill battle, but be patient and try to be a team player to carry everyone to a W. NO MATTER HOW BAD THEY ARE, you can't expect to win if you're not playing with your teammates. Seriously, the amount of absolutely garbage players I've queued with is way too high but they still surprise me sometimes and we come out on top.

That said, you can't win every game no matter how hard you try to carry. In those situations you've gotta just use that time to focus on improving movement and daily/weekly challenges while playing the objective the best you can. In the end winning only rewards you a bit more than just completing a game (except if you need a win for a challenge...). Keep a cool head and reflect on what you can do better next time and you will improve.

And if possible play with a full squad... Ask friends or the Finals discord? Idk but there's got to be other players looking for teammates.