Been reading through this thread and would like to gatecrash if you don't mind, and share a little of my own story.
No Would love to add a new face thank you for sharing 
Just came back from WDW one week ago, but it was a long journey getting there!!!
Awesome!!
In January this year, I just woke up one morning and though 'God I'm fat!' and decided I had to do something about it. DH and I had already booked to to the World in September for our 6th trip, but I was really not looking forward to the plane journey. Last time I could only just fasten the seatbelt, had nowhere to put my elbows (apart from digging them into DH and the stranger on my other side) and the most humiliating was that I couldn't gt the tray down to put my food on!
I know exactly how you felt I am going through that currently and dred the flight some. Hoping I dont have to ask for an extender 
So, I've no idea what happened to make me choose that particular morning, but I decided enough was enough. I faced the reality that day that I really couldn't do this on my own, so looked up my local Slimming World Class (bit like WW for those of you who don't know, but more focussed on healthy long term plans) and went along that night.
I was shocked at the 225lbs that came up on the scales, but the poeple were so nice, I've stuck it out for 35 weeks, and have so far lost 57.5lbs. It made such a difference to my WDW experience!! I got the seat belt on no problem, managed to not only get the tray down, but also to pull it towards me about 3 inches. Rides were much more enjoyable oo.
So proud of you Congratulations!!!
Why am I rambling on about this????? Because if I can do it, you can too! I'm a completed couch potato..permanently attached to this laptop, with the TV on in the background. I have a very busy job, and Mon - to Fri, I get up, got to work, come home, sleep etc.
You sound exactly like me tv laptop and all!!
DH also needed to lose a little weight, so he has been with me every step of the way, eating exactly what I eat and discouraging me from reaching for the chocolate.
Wish my DH was helpful he tries to make me feel better with junk food I had to finally tell him to stop buying the stuff cause I want going to eat it any more.
My outlook has changed completely. I still cannot stand exercise, the gym is the most boring thing on earth for me, but I now park in a remote car park at work and walk approx 1/2 mile there and 1/2 mile back each day. It's proved to be enough.
PLEASE KEEP UP THE GOOD WORK.......Not only will your Disney experience be so much better, but your life in general will change so much that you will not believe.
Thank you
I'm still a couch potato, but I'm lighter, healthier, more alert, can stay awake much longer (go to bed later and get up earlier) and have become much more organised in my domestic habits (cooking, cleaning, shopping, washing) directly as a result of the weight loss. I've made a whole new bunch of friends at class that I now socialise with too (I'm currently making wedding invitations for one of them - she's finally agrred to get married after 6 years because of the weight loss she's achieved).
Thats awesome I need to get to that point too I hate exercise but i do it and I feel better just making myself get up and do it.
We all have our own reasons for wanting to lose weight, every one of them perfectly valid. Be proud of every single pound you shed, anyone who says it's easy has never been there! Good luck