host 1v1 custom games for 'noobs only' or '<500' or something like that, when you start winning plenty of them your rank will go up, just make sure you dont play with any mods that unrank games
either that or grind through a lot of random teamgames and eventually get into + ranks
Your rank doesn't go up when you win? It means you may be playing with non ranked settings or mods. But in that case your rank will not go down either....
if you search for your games in online vault and uncheck "spoiler stuff" then you will able to see how much rating you gained for a game (tbh not sure if this still works, but i think it does for ladder games)
in case of custom games, check your rating before game: view player's statistics in chat and look at "lowest possible rating" - that is your rating