Good on you that you are already trying to do cutties and you've only been surfing for half a year! I live in Sydney and only started doing cutties after a few years and I get way more than 70 days a year
The trick is of course speed. Best place to learn a cutback is on a point break or reef. Somewhere where you know that the wall is definitely going to stay up and not close on you.
If you've got a wave like that then instead of riding it top to bottom (very hard to not do on a beach break, as how often do you get a nice open face and want to waste it practicing something??) , pump for speed down the line, racing away from the curl, (you don't usually have to race away, but for practicing it'll guarantee that the face isn't too steep when you do the cuttie, otherwise you'll have to do a re-entry instead) then drop down the face to get more speed, do a wide bottom turn towards the shoulder of the wave but rather than swing around fast for a snap, lean on your back heel like you were doing a backside bottom turn.
I think not going backhand enough stopped me from learning cutties earlier. The great thing about them is since I've been doing them I carry a lot more speed by doing little fades and cutties. Keeping your board on the rail reduces friction and keeps your speed up, of course it has to be done on the right part of the wave otherwise all that carving is going to slow you down.