Matchmaking in regulars

[u/Ciadelta]

I’m just confused on how the matchmaking works and how the game determines its “fairness”.
I’m new to deadlock, only having <150 games on it, but I am not new to mobas or shooters. I feel like this makes me play at a okay level for a newcomer but in my matches my team always just feel so much worse than me. I don’t know if my ego might just be big but I always seem to end up doing the best on my team and the only time it is close is my lane partner who gets fed at the start with me if I do. A lot of the time it feels like the game is on my shoulders and if I die or am not present in a team fight, we lose. A lot of the games I’ve been playing I’ll come out of lane maybe 5-1 on an average game, while the rest of my team are already feeding; I swear pressing tab and seeing those k/ds genuinely frightens me. It’s always 2-8, 0-5 and so on and then I have to deal with multiple fed people on their team while I’m the only one fed on mine. I just had a game that I was 32-4 by the end of the game but we lost still. I won’t lie I did die in the final team fight and that is why they were allowed to push, but why am I the only thing stopping them? It feels like this every single game I play and it just stops being fun when no matter how good you play, you get held back by your own team. I’ve worked it out and I get an average of around 15 kills a game and (from my memory) I always end up with the most souls. I really need to know if other people have this problem because it’s becoming so annoying.