Never give up.
I just completed a ranked game. A ranked game where my kog jungle (yes i said jungle) was 0-11 at 20min. My mid swain after 20min had 30 ( yes 30) CS. It was one of the worse 20min I have ever played in LoL. Our team for whatever reason, did not want to give up. After a while the tables started to turn. Me (nami) and our TK top started picking people off all over the map while the rest of the team farmed up. Needless to say we ended up winning a game where most people would of quit long before the 20min mark. Don't give up just because your down. Keep farming, stay positive, and work through it. Anything is possible on the Rift.