So what do i do now that the draft is over? Can I add more players to fill my missing positions? OR is that not allowed?
you can put a claim in for anyone you want on the waiver wire. go to the 'Players' tab on the league page, that's where you'll find all players not currently on a team in the league. Alternatively, you can propose a trade with another owner in your league, using your excess at one position to fill a hole at another position.