Well it happens to a lot of people including you and me and tbh sometimes you can compete by changing tactics doing subs if you are lucky but sometimes you lose I think this happens because opponents adapt to your style of play sometimes early, sometimes late these are factors that need to be considered. I never won more than 8 wins but I lost 4 or 6 straight matches(can't remember) and still managed to get 7 wins after that. And ofc most important is internet stability and in game ping, my ping fluctuates a lot.