sophomore rush

Yes and no. If you have made friends freshmen year that are in sororities it will help because will be pulling for you. If houses cut you last year they will probably cut you again. If a house knows that you cut them last year they will probably cut you because they know you weren't interested. I would go in being very honest about your reason if it isn't super personal. Like say you dropped out because you weren't sure about being greek, then explain how you saw what being greek actually meant during the year and you want to be involved now that you know there is real sisterhood and more than parties. Or if you suicided or didn't like your options, be honest that you regret your decision and made a huge mistake ESPECIALLY at the houses you could have joined but dropped over. It will be harder as a sophomore so telling people up front can only help your chances.

If you don't try, you will regret it. So go ahead, but keep your expectations low. There are some disadvantages with your situation, but you also are older and wiser. What have you got to lose?