Day trading, Margin Account, How to avoid the 3 day wait to get my cash back?

Okay so I am starting out day trading online, I made my first sell and got a nice profit back, but the money I got from selling takes 3 days to get back to me to purchase. I looked into it and well it looked like I wanted to enable a margin account. More research tells me that with a margin account I can go straight back to buying but I cannot sell because I have unsettled funds. I was wondering if there was a way around this?