I had quite a bit more fun last night. Finally getting around to addressing cows/thunders comments.
yeah - playing with pals that I know aren't particularly stellar erodes my good mood, as one would expect. Especially if now they have to perform at a much higher level (eg its not 4 bronze peeps + plat pacov - its a mashup with a guy I know will likely be herpsmuhderps). I get that its nice to be king poop when I'm super swell guy and all my bros are not (eg pacov the hero will destroy them for you) - I just don't get to play with consistently low level folks (nor would I really want to).
Re: Pacov's Mid LoL Crisis
made me laugh yesterday 
Anyway, I was just venting a bit as I was frustrated. Just a good series of events. Ranked mismatches not in my favor.... then derp game mode, derp normals, derpy team builder on 1 day. Next day derpy team builder in my favor (result easy wins, boring arse games). Just kind of an over time frustration sort of thing.
Cow saying go play some ranked doesn't solve the problem for me directly because I'm expecting to be in some crap mismatches like before (just negative attitude ofc). Then if I play champs I haven't played a million times in team builder (cause I've played champs a million times in team builder...), the matchmaking adjustment kicks in. This means I will potentially get derpy teammates trying out champs - what it means for certain is that folks I'll be queued w/ and against have that matchmaking adjustment on... so lower quality matches are the outcome usually.
My real frustration with this teambuilder adjusted matchmaking based on how many times you've played a champ - you don't know how much you need to play to end the adjustments... so I constantly feel like I'm going to be getting derps mcgirks. And when that actually happens over and over... well... poop. Also queueing up in tb for role I want to work on but have little experience often take me a VERY long time for some reason. Whereas before, I could queue up as vbear jung and be in a queue in 1 min... now its like 5-10... also frustrating.
Anyway, I'll even out in a bit. Decided to just play a bunch solo and work on morg in top/mid/bot.
I usualy do, outside of urf, have difficulty in separating try hard from "semi" hard. I just find when I'm getting frustrated more often, I make fug it calls and choose to push longer than I should to try to get a turret, etc. Things like that. Where if I didn't feel like folks were blowing it, I'd be more reserved. That's the downside - I choose to join in (perhaps this is what you mean by semi hard) when others start derping. I just get super pissed when I'm doing my part, then others piss the game away. Feel like my time was wasted. Last, I know I'm not amazing or anything and I do know when I've just fugged up vs tilting. I certainly don't do well every game if things are equal. But I do certainly tilt a bit if I'm doing my part and people just do dumb as bricks things.