Ranking up is not immediate unless you are far outside of where your skill lies.
Intentionally throwing games obviously will put you behind your goal. If you are one to intentionally throw then it is clear your mental is weak and you get angry at teammates outside of this match alone. Remember yall are on the same team. Be nice, be supportive, and brush off rounds yall shouldve won. The far majority of people will not "step up" and play BETTER if they have a teammate angry in their ear, especially at the level in which you are at.
With almost 2k hours played and almost 100 games played this act alone, its clear you care about this game. Just sit back and honestly care less about the round-to-round micro'ing (even if it is frustrating at times) and be a bit more friendly. I promise you will win far more games. Still comm but be positive.
The amount of times ive won 3-11 or 4-12 comebacks for just being 'fake positive' by saying shit like "12 is all they get, lets get it boys" is laughable.
Im by no means a pro, but imm3 most episodes and this has carried me a ton.