I cant handle this game sometimes

Went on a huge losing streak with me being the cause of half of them (probably) but I really want to vent about 3 games specifically 1I was jayce that was fed,Didnt really care about this game because even tho the team fed they were trying so I didnt care too much 16-7 KDA 2.I was lucian going 28-8 but I had 2 afks keeping me from winning, I raged a little then moved on 3. This game really pissed me off so get ready for a wall of text. As second pick I want to go graves adc. Then last pick desides that adc is a good idea so then we have a support and 2 adcs so just so we can win I go mid. I totaly destroy mid lane (Full build 20 minutes in) then adc number 2 says I was doing too good and afks (Literaly what they said) then 2 others on my team said that no mater what we do we cant throw and dives their fountain (literaly) Multiple times giving them a LOT of gold.I tried to end early with my lead but I me and our top laner (who was feeding but wasnt intentional or anything) cant 2v5 there team so we end up losing the game 40 minutes 38-10-7 KDA in...I need help This is mostly a vent but advice is nice too. and if you actualy read this entire wall of text and understand it then you need a cookie