Support/Mid LF Mature serious Duo Partner

Im looking for a good duo partner who wants to seriously try and climb ranked this season. I have been playing the game since beta but Ive only played ranked in season 2 up until now. I know im not the best player so I don't expect the best partner but I would like to duo with someone who wont flip out over a loss and can learn from mistakes made. An ADC player would be optimal but i'll take whatever you are best and most comfortable with. Placements placed me in B1 after topping out in S1 last season. So please be at least B2-S3 or so. I really want to get better and I would love to hit at least mid gold or even plat. Add me in game and send me a tell and lets try and play :)