new to online

Hi I am new to the online but have been using the mobile for a little while now. So far I have lost about 5.5lbs .I have been trying to loose weight over the last couple of years but have lost my motivation too easy. I am now determined to do it this time and hope to be able to buy a size 12 dress for the Xmas Dinner and Dance this year. I am a size 16 and weigh 12st 11lb. My daughter is also on here and we are helping each other but all help would be gratefully excepted. I am married the second time and have found the right one this time ,we have six children between us ,two dogs and three cats. love walking the dogs but need to do more exercise .Would love any tips any one may have .