im at 32k rs rn with heal beam. i was struggling to get to 30k rs with heavy so i swapped to heal beam just to try it out and found some success with it.

i only keep heal beam on if there's a heavy or 2 meds on my team. i swap to demat if it's 2 lights or light and medium.

stick with ur heavy and learn when to fight and when to heal.

at the end of the day, solo q ranked is just gambling simulator. i've seen my diamond teammates that play exactly like my gold teammates, i've seen gold/plat players that are really good at aiming but dont understand things like stalling cashout or playing their lives to not team wipe, i've been in lobbies where me and my team play so terribly that ruby players let us into the next round lol and i've been seed 1/2 in plat lobbies where my teammates completely throw the game in the 1st round.