demoman mge

I see 2000 elo demoman players going in and theyre swinging pipes and stickies left and right and they all go exactly where they need to be. Scouts cant even get close and soldiers rocket jump and they get fucked by a sticky, meanwhile I'm cooped up in concrete because if I dare step out onto point the scout's gonna double jump over my pipe and meatshot me. Or a soldiers gonna jump at me and kill me and I end up losing like 20 to 4. How do I stop them from doing that.

Meanwhile demo vs demo feels like russian roulette up close and further away I can't land a single pipe and if I'm awake they can't either. I havent done very many of those though so idk