My ranked game today

So today I get off work and I come home and I think to myself, I feel good, I feel confident, I'mma gonna play ranked. So I queue up and I'm first pick, so I think to myself "Okay, I'll just pick someone all around good, hard to counter." So I pick Ahri. I don't remember the enemy team besides Shaco and Swain but our top was Garen, our jungle was Lee Sin, and our bot lane was Miss Fortune and Sona. Game starts and I walk out into mid while I type something into chat about how I should have banned Swain, place my ward and stand guard for invades, minions spawn and I walk out into mid to be greeted by Swain in mid. The game proceed and I make a few good trades with my q level 1 but Swain hits me hard once and my health just melts away leaving me at 50%. I decide I have to play really safe and just focus on that and that alone, but sure enough one more hard trade and Swain kills me. I echo my previous sentiments about my opponent to my teammates and head back out promising myself to be safer. It's not very long at all before I'm in the same spot again but I take a good bit of his health too as he takes turret shots. He survives with a sliver of health while Lee comes over and tries to line up a q but fails and settles for pushing my lane back out for me. I decide to push and roam for the foreseeable future but sure enough Swain follows me and takes me down again. This pattern repeats it's self for some time until I'm 0/5/1 when Garen pipes up and says "C'mon Ahri stop feeding" to which I respond "I've asked for help multiple times. What would you like me to do?". He says "Just stop feeding" "I've asked for help, what would you like me to do is the question." I say and am met with silence. I pipe up again and say "Do you want me to just stand in base, because I can't go out in mid anymore." more silence. I die again and the crowd boos once again and finally Garen speaks up again and says "Ahri, Kill Yourself". The game ended very shortly after that, what I want from you guys is just to know, what did I do wrong? Why 1. did no one help me and 2. Was it still my fault in spite of my every effort to refrain from feeding? I just feel so frustrated, this game isn't fun anymore when I either destroy everything in my path consistently in normal, or get counter picked or Shaco'd and wreckt every game in ranked.

Shaco'd - Past tense verb, to have an opponent pick Shaco in a low elo match where no one besides me is capable of buying pink wards.