OK, lets get it into perspective, Lou. First, it is only you who sees yourself like that, I am sure DH and other ppl surrounding you do not think it is so bad.
Second, you have been ill, I understand. Three sessions of exercise in a week after previously being off sick would be a bit strenuous. Chose walking over everything, it is the best recovery and weight control exercise. Walk wherever you can. Be outside in the fresh air as much as you can. It helps being away from food, it helps to fight going under with depressive thoughts.
Third, dress as good as you can! Wear your best stuff or get yourself some really good, fitting clothes. I find my mood lifts automatically if i put a dress on isntead of trousers, since I have huuugggge upper leg and all teousers stretch around me really uncomfortably. Just being out of these kind of reminders that you are bigger than you like might help.
Fourth, the damn husbands can eat more than us and stay slim. It is a fact of life, they are biggerand they metabolise better, also do not go through hormone changes monthly as we do.
Fifth, are you sure you do not have underlying issues which can affect weight - thyroid, pcos etc? If you have you probably can not diet yourself slim, these illnesses make one to be on alarge side.
And last, when you have done all the above, eat three healthy meals a day and sod the scale. you may try to check that every meal has a veg component, incl. breakfast, but other than that - you need these three meals a day.
try not to eat pre-prepared meals if you do, cause it is amazying how little food - related pleasure they give, and they are never healthily prepared, because the manufacturers do not care! Even if labelled healthy, they are not. I once looked at the weight watchers ready meal inm y local supermarket and even if it was labelled tantalizingly 300kcal per portion, the portion would not have fed a baby,it was TINY.
If you are doing all the above already and it is not starting to feel better soon, you need maybe to tell your gp. It may be depression? Have you talked to DH about it all? Maybe he could help to have some perspective in the situation, make you a bit calmer about the whole thing?