You have 2 days my friend. Season ends this Monday so you better hurry up or just plain give up this season.
From bronze 4 you would need around 40 won games to get into gold 5, at 40 min at piece that's around 27 hours. And that's an unrealistic 100% winrate. In average if you don't belong on that division you get around 80% winrate which would mean around 38 hours, if you only don't belong on that tier you get on average 60% winrate which would be around 53 hours. If you are struggling and you belong somewhere on the neighborhood is around 52% which would around be 60 hours. You have until midnight of Monday so you have 60 hours left.... so happy climbing!!!!