Atkins works REALLY fast, it is hard to get into but after a couple of days it is easy - is okay for a quick fix for a couple of weeks but wouldnt recommend it long term - like all quick fix diets, it all goes back on when you come off the diet.
Something like weightwatchers or slimming world is good for longterm weightloss/control.
Or if weightwatchers/slimming world is too expensive or not practical - drink plenty of water, cut out ALL junk, sweets, cakes, crisps and biscuits, eat your 5 fruit n veg a day, cut down on bread, have 'light' everything and go for walks or do some exercise.
Good luck x