new to my fitness pal

Hi Everyone, just been introduced to my fitness pal OMG how fantastic is it, well I hope this is going to be the tool I need , as over the past 12 months i have done Weightwatches, Slimming world, Rosemary connolly , Closer magazine diet, £160 ON Acupuncture, back to WW and £50 on slimming tablets and still weigh the same, hopeless!!!! lol, I have had no will power and no motivation, I have 2 stone to loose,but Woke up this morning and thought to myself if i can do this, im doing 1200 cals per day , is there any body out there who has a success storey to motivate me , thanks Jannette x