seeking support and motivation

Hi all, I just started a new account here on MFP, had one back in 2012 to 2015 and managed to lose and gain and lose and gain . Holding steady at a 20 lbs loss. I need to lose another 25 . I'm not getting any younger ( sadly ) and each pound seems harder and harder to lose. Sometimes I just want to give up and wonder why am I at age 47 killing myself at the gym, I cant wear the cute clothes anymore even if i lose the weight because I'm too old. I should just be home learning to knit for future grandchildren. I want to be healthier. I need to look at this as a journey to be healthy not a ' diet' . I have a vicious cycle of not seeing any numbers on the scale move or move in the wrong direction and then I go on a downward spiral. I have a food addiction of this I am certain. I can't have a little piece of anything that triggers my sweet tooth. I will then in my mind say you already fell off the wagon so keep eating and then I will eat and eat and eat until I am sick...anyone else like me or should i seek help..lol! I just started at the gym again. I after numerous failed attempts completed the C25K program ( YAY ME ) and i will be continue with the C210K next. Please add me, I need all the help I can get :)