Enjoying League

Hi guys,before i write this post,i want to apologize for my english.I've been main jungler for nearly 3 seasons,i've played every single champ that go in the jungle,even the ones that should't go jungle(like Zed or Lux).I love Elise and Shyvana but now,i find it really annoying.Playing for winning and not for enjoying the game itself.I tried any other role,but is really hard to me.I don't know how to properly farm so top and adc i usually lose now,mid is even worst.I'm here asking not for a tip or an advice,but for help.I have already stopped playing league for 6 months for the same reasons,and now happened again.What i should do?How i find any champ to enjoy league again?How i find a new role or enjoy again my main role(which i nearly hate now)?Which side of league i forgot that makes me enjoy it more? Hope for your replies.