Sweetie, a lot of us are in the same place as you.

I'm guilty of talking a good game and not playing, a lot, for years. For me, there are many nights when I go to bed feeling the same way, after having gotten up in the morning with so much positive steam, looking at the new day with promise. Somehow, at some point in the day, all that positive energy runs through my fingers like sand. Hrmph! I need one of those hugs too!
We have a long road ahead of us. I can't look at the whole route without losing my resolve. I can only look at today. I can only make my plan for today, remind myself what the plan is for today, and try to avoid the things that lead me to losing my resolve during the day.
Surrounding myself with like-minded people really helps. I've tried to eliminate as many saboteurs as possible. That includes people, gateway foods and behaviors (things that lead me to eating off-plan or overeating). I enlist the help of others around me as much as possible (I tell my kids not to share their food with me and not to let me clean their plates for them). I used to live near people with whom I exercised, but since moving recently I have to find new friends.
I lost my first 40 lbs by making everyday changes/adjustments to my diet that I could live with. I was doing great! Then I hit what believed to be the world's longest recorded plateau...one year! I was just stuck between the same two numbers - 320 and 308. I was stressed with personal issues that piled up all at once. I couldn't do it all, and I just got sick of being so focused on losing weight.
I'm still rather sick of it! More recently I've been bouncing between 315 and 308. At some point during my day I set aside my goal and indulge myself with choices that lead me to gaining weight. I made the choice to start on Medifast a few weeks ago, and I was doing so well during the first week, but I indulged over the weekend and had to start all over again. This weekend was going so well, and then I made a stupid choice to have Thai food last night and now I'm bloated like a puffer fish!
I don't know why I keep sabotaging myself, but every time I do, I learn another lesson about myself and my choices, and I get up and start again. The one thing that keeps me going is that the alternative, to give up, is DEFINITELY NOT what I want to do. That's what is preventing me from backsliding and gaining all the weight back, plus more, this time around.
I'm 48 and my bucket list is long enough to wear as a scarf! Losing weight is not even at the top of my list, and I'm not waiting until I cross that item off my list to live life. I'd rather tango with a hot Argentine in Buenos Aires when I'm thinner, but if I knew that this week was going to be my last chance to do it, I wouldn't pass it up.
Let's find more things to enjoy in life, things that create lasting impressions of feeling good. If we're feeling good about ourselves, then we don't have any reason to resort to the old behaviors that got us through some stuff in the past but no longer serve our needs.