Please tell me whats going on! I need help.

So ever since the season started I climbed very nicely to gold 2, which is my highest being a relatively new player of maybe a year. I used all my favorite characters...volibear /sion /braum /veigar etc.. and I was winning with relative ease. Most were around 70% win rates.

So I got out of the marine corps moved back home so I didn't play for roughly 2-3 weeks.

I just can't seem to get out of a slump. At first I thought it simply poor luck dropping to g3....then it was g4.....and now g5.... Every. And I mean EVERY game there is one or more people who just completely sabotage the game. It has literally been the worst losing streak I've ever had. For example... Even if I put every lane up a kill as volibear and get the level 4 dragon. People will just go ballistic, intent feeding...rage quit...etc..

Team is fine, I just have a hard time getting my friends together at once. This is in strict regard to solo que. I've tried changing my horizons...playing hyper carries and such things, but just cant pull through.

I really cant figure out why it seems everything suddenly become to troll. I thought gold would be better than silver in that regard. I really love this game but it just makes me want to quit. Any advice at all would be great.