I agree with eldertree but it can be a risk. If ur enemies r a ranged kit ur doomed cuz hh does a ton of dmg. For me, i use barb to soloq and i went from s2 to g1 cuz i have insane tracking and pvp skills.
I'm neither of those ranks + I'm in bad lobbies because if you solo que that means you have no team and you need a team in plat+ lobbies. I am p4 almost diamond on my main