perfectpeach,
I moved your post here and sent you a pm.
I see you also posted in the Whiner's Wall.
Many people ask the same question and the responses tell you things like, you will win eventually if you stick with it. You need patience and persistence. It is different for everyone. Some people get their first win not long after they start sweeping. For others, it takes months.
If you read the posts here in Newbies, and in General Sweepstakes Talk, and around the forum, you will find lots of advice and encouragement.