It doesn't even matter what role you like to play anyways. Just by being an overall calm player can increase your odds of victory substantially.
Numbers can attest to this one, he was playing with me during this. He was mid while I was support for a trist. We got outplayed at level 1 by their jungle and bot invading through wraiths and taking our red, then ganking us from behind in tri bush. In the process, most of my wards were either taken out by a pink or ran out of time. Only ward I had was a pink.
So basically, trist gets really mad that were getting bullied out of lane and tells me to lane with Numbers, cause we weren't hiding the fact we were duoing. Complains about lack of wards and me not creating pressure so he can last hit. Basically, I just told him to calm his tits, because I looked at the lane and realized 4 things.
First, we had a 2 level deficit compared to both enemy adc and support. There was no way I could give any sort of pressure without killing myself. Second, the enemy jungle was camping our lane, and I knew that trist would have absolutely no chance against a 3v1 tower dive without cc, let alone a chance to lane a 2v1 without a heal (I was nami). Third, they were pushing their full wave to turret at all moments, and trist was capable of last hitting under turret, so it wasn't like he was missing cs. Last, even if I did ward with the one ward I had, they had a pink and ward superiority, so the second I put it down, it would go down to a counter pink, and waste 125 gold. And it's not like we needed one anyways because we never left turret.
Basically, like I predicted, their jungle dived us with bot as a 3v2. I locked up elise with a q after she hit our adc, so she takes aggro and forces flash out of her. Cait then got aggro, cause she was aaing me, so I exhausted her and got a kill out of it. And lulu was forced to b. After that, trist caught up with levels and surpassed cait with gold, and I had a chance to get more wards safely, and we started steamrolling the lane. We won the game by a large margin.
tl;dr: being calm lets you win, and not get butthurt.