solo queueing is pretty bad, you're better off trying to queue with good friends
if you want to solo queue you have 2 options
1) keep grinding out games, if you win 53% you'll slowly gain mmr
2) wait a month for the ratings to get sorted out, so when you come back you won't face many 1900 players as they'll hopefully not be able to be assigned to your game
if you want to grind out games, go to this site, and click on your hero tab and sort by +/- MMR
http://honstats.orgsee what are your heroes that have gained you a lot of MMR and just play those, sadly s2 fucked up the xml again, so recent stats aren't recording properly