RANKED SOLO/DUO FAIL MACH MAKING

Never get higher,,, from bronz 3 to silve 5 very dificult every time smurf against me with 20+ kills and my team consists within feeders trollers leavers and beginers............. so i say riot how the hell ou think "I" the palyer which love this game since season 2 will like this game if you make me so unsatisfied i have 350 mb/s internet, gaming pc 200 fps+, now tell me its good when you go into promo twice or 5 times in row and you have leavers in team ?........nope after ihave leavers so how i can rais when my mmr droped and now i have every tiem loose and every team against me is btter i dont like it spend a lot fo time for you, this aint no fun and i dont like youre system fix this plz and dont tell me its my fault i made a lot to make my game clear.... you and youre system make me rly unhappy person