Make sure you are saving your sweeps in mysweeps. Especially the one entries. You don't want to get DQ for entering more than the rules allow. If you just enter one extra time maybe you wont get DQ but why take the chance. Enter the instants for sure.
With the dailies it could take months and months to find out if you have won so don't get discouraged if you haven't won anything the first few months.
Have a email addy for sweeping only. I made the mistake of not doing that and its a big pita.

Check your email often. Spam also. I have had more than a few winning emails go there. A winning email will usually have the name of the sweep listed and say you are a winner or congrats or something like that. If its all in CAPS and misspelled dont even bother. Its spam.
If you have any questions members here are always helpful. good luck. Hope to see ya posting in the winners circle soon