2k to Immortal

I've been playing dota for like almost 4 years and I recalibrated every year trying to push my rank higher.😴But it's not enough tbh I found this community a week ago and I want all pro's help on gaining mmr, I usually play mid and I'm good with pos1 and 3 at the same time but I get matched with absolutely nonsense players who keep typing the keyboard even tho I mute they completely ignore my gameplay. So what's the meta hero's I need to spam in mid to rank higher? I play lina, invoker, puck, qop and sniper what should I improve? What's could be the way to immortal?🙂 (A hopeless man trying to find something thru dota help me 🫠)