Feeders in low elo

I dont understand guys, i need some mental help before i quit this game. I dont want it to be that way but a lot of people know ranked matches are here for competition, and you dont want to feel like ur wasting ur time.

I am currently silver 5, one more loss to being back into bronze. I have gone through 3 lost series to silver 4, and it took me two full seasons to get to silver. So with that said i know im not a good player. The steps i take to getting better start with simple ones like trying to have max farm on team, and not dieing.. period. I do fight and trade in lane but i just know my matchups well, and can tell when somethign is a risk not worth taking. I do die though its not like i go through whole game ttrying to not die.. i do participate into fights. My last game i was playing riven, i been playing her a lot. I was against a extremely aggressive panth, in which he shld be. He wld ignite me half health and all sort of things, while our jungle was being pinged to come top, while i just try to sustain this guy and cs best i can while not dieng.. never got a gank. while this is happeneing in my lane, the score is 0-14. So the whole team has ran around dieing, and they all have the confidence to do what thy want, and i cant do much ab it at this point bc of the status of my lane. I just dont understand what to do when this seems ot be 3 out fo 5 of my games..

I need some mental boost or something..

help me out here.