"Hey look I'm getting carried by someone else hard enough to the point that I'm finally able to accomplish something despite the fact that I complained about not having any progress and still am not able to perform very well in a lower tier"

yea by the look of those logs, you're clearly an integral part of your team

You do realise tHat happened a year ago, right?

EDIT: Also love the fact that youre going on a hunt to find posts on my profile from year ago. its absolutely hilarious

Yes, I also realise that your progress as a player has been very slow compared to others that started playing when you did. Your original point of you only having 2600 hours and being in the mid finals is incredibly redundant since it's clearly not your fault that you're in the finals. You're simply being carried by another player, mistaking this for anything else is delusional.

Edit:

If me doing that somehow apeases your ego, then remember that the only thing you get out of having an ego is the constant denial of having to give yourself excuses for why you aren't as good as you think you are.

what division should i play? silver? open?

https://www.youtube.com/watch?v=rxPsw9LAiLI

join an open team its easily the best and quickest way to learn
even if you're bad and your team loses almost every match you can always find people around your skill level and scrim them to improve if you're just getting rolled by the top teams

also i think it goes without saying that doing DM, mge, pugs & jump maps will help some but in order to actually improve your understanding of the game you need to either play or watch 6s (pov, stv, casts, etc)
demo reviews of yourself can be helpful if you are good at finding your own mistakes and noticing what worked/didn't work but it may be helpful at first to have someone else give you some advice so that you don't interpret you getting out DM's as making a wrong decision, or hitting every shot and winning a fight that you shouldn't have taken in the first place as a right one

edit: https://www.youtube.com/watch?v=SlCRfTmBSGs

same :(
could it be that after we won IM with the illustrious con "nub_danish" bud both of us plateaued due to lack of his fresh memes?

http://logs.tf/1464002?highlight=76561198050200022
http://logs.tf/1463894?highlight=76561198050200022
http://logs.tf/1463858?highlight=76561198050200022
http://logs.tf/1462171?highlight=76561198050200022

you really haven't learn much with your 2600 hours

Not qualified to advise you on TF2 improvement specifically, but watch some videos and read articles about the theory of improvement.

There's a certain methodology to improving in anything. Just doing the same thing over and over again, for example, is actually not going to make you get better. Or, should I say, it's a much slower process if that's how you try and improve. You have to keep testing yourself, perhaps by setting measurable goals for improvement (for example, somebody shite like me will aim to win 10 points in MGE against a quality player or whatever)

Seriously, look up the theory behind improvement.