u r closer than u think. your front hand is well back which is great, you just needed to keep pulling hard with back hand and keep pulling feet up hard to your bum, (and as squid said, put back hand a little further back) but the rest looked good
its a pretty big ask to get around to a waterstarting position on almost dead flat water during early attempts. if u do a kind of backspin and just end up under the sail you are doing well. you'll find you'll get more and more aggressive with them and get around further and further