Hi ejc1905,
Welcome to the forum!
I only joined the forum myself recently and I too have an awful lot of weight to lose but I think you will find the fact that there are others on here with similar journeys to travel will be of great support and help to you in your own personal journey. Also, when you read about and or look at some of the success stories photographs (view the inspiration slide show at the top of the page) this will also motivate you big time and help you to see that it can be done and that you are certainly NOT alone!
I am also on Xenical and have been for approx 1 month now and so far I have lost 14 pounds and encountered no problems. I presume that is because I am basically sticking to a lot of low fat foods though and have yet to see what happens if I eat anything high in fat!

My GP put me on it for one month to see how I got on with it and so I have got to make an appointment this forthcoming week to see him but I guess he will be happy with my progress so far?
Another thing I have done is get rid of my bathroom scales as having scales around for me is a nightmare and in the past when attempting to lose weight, I have become obsessed with stepping on the bl**dy things! Fine when the dial moved downwards; I would be on a high but god help me if the scales stayed the same or showed a gain and many a time the dreaded scales have ruined yet another feeble attempt to lose weight! So now I don't have any and life is just wonderful

and I simply get weighed at Boots whenever I can make the time to get into town! I haven't been to get weighed at Boots this week so I cannot tell you an accurate up to date weight loss as the last time I got weighed was 9 days ago - but I am guessing it will be more than that now so, in 1 month I have lost well over a stone!
As for the 'diet' I personally am following, well it is pretty much my own individual plan that I have concocted as I have decided the 'normal' diet foods and plans (and I too have tried them all) do not work for me long term and every effort I have ever made has always ended up with me getting bored and dissillusioned. So, this time I have devised my own unique way in order to see how I get on with a less structured routine! I do not weigh foods or count calories as such at the moment but instead I just stick to healthy options and when I have salads and vegetables with my meal I literally pile my plate up with these foods to such an extent that it looks obscene!

I love my veg though and filling up on them really does keep any hunger pangs at bay and stops me wanting to snack for the rest of the evening. I cut all visible fat off any meat BEFORE I cook it as that way I resist the temptation to eat this most delicious, crispy and succulently tasty part of say a pork chop or a sirloin steak and I steer well clear of things like pies and pastries etc. I love grilled fish and I have become quite inventive with sauces to pour over them and my husband cooks a mean chicken stir fry! Crisps and sweets (which I can live without) I simply do not buy and my fruit bowl is always full if I fancy a quick nibble of something sweet and my favourite desert at the moment is 1 small meringue nest filled with a good portion of Tesco's frozen summer fruits, (defrost for 2 mins in the microwave) a dollop of Tesco's healthy reduced fat creme fraiche and 1 Askey's chocolate curl cone wafer; it tastes very sinful yum! yum! but in fact I worked out the calories from the side of the packets etc and the total amount comes to approx 195 calories! Like I say, I don't currently weigh or count calories as such but when my weight loss does slow down then I will buy a good a - z calorie counting guide book and make sure I stick to whatever my daily calorie requirement should be in order for me to continue to lose weight! I also have cut out alchohol and instead of my nightly glass or 2 or 3 of red wine hic! hic! I now only have 2 glasses on a Sat night as my weekly treat! Guess what? I even went out Friday night with my husband, daughter and son in law to our local Indian restaurant but I chose a veggie dish with plain rice and drunk diet coke so it shows you can still go out and socialise if you are determined to choose the healthier options on the menu!
Anyway, this is just my own chosen method but I am sure you will find all kinds of advice and suggestions on this forum that may suit you and your lifestyle better and whatever 'diet' you opt to go on I hope this is the one that finally helps you to become the 'yummy mummy' you want to be!
Good luck and by joining this fabulous forum you have taken the first step to changing your life!
Sue x