SpoonyMangos posted...Say if I do solo ranked and team ranked, will i have two different ratings for ranked?
Not only are the two separate, but each team you are on is ranked separately as well.
If you can put together a team, then by all means go ahead - you have nothing to lose. When the team fails miserably, you have the option of scrapping it and starting over fresh at any time.
I'd suggest holding off on doing solo queue ranked for a little while longer - you can only do your placement matches once and if you screw it up (as you are more likely to do as a fresh lvl 30) you'll be starting at the very bottom rung of the ladder. Build up your champ pool and get a little more experience under your belt first imo.