You can get the weight off at your age, but to be honest, Zumba two times per week with a little weights won't do it. It's great, and you should keep doing that, but unless you live in a big city and walk everywhere at a fast pace and have a very physically active life outside of the gym, that's not enough exercise. I'm 43 and I do three zumbas per week and try to fit in some other class as well like bodycombat or yoga too just to maintain. I would walk or jog regularly to negate need for so many classes, but I have my kids all the time and they're too small to keep up so I use gym daycare.
Whenever I need to lose weight, I cut my already low calories and work out even more. Like, yoga DVDs four days per week before anyone wakes up and then my regular gym classes evenings plus I try to fit in some sort of walk or active play at a park with kids-again, all while cutting calories. The key is maintaining a good weight, because LOSING is SOOOOO hard.
I eat 75% raw fruit and veggies with the rest being healthy carbs. No sweets except rare dark chocolate, no meat-I also cut dairy. It's easier for me to eat unlimited amounts of healthy food than to restrict calories, but some people prefer keeping some bad foods but counting calories-either will work.
This all sounds really hard, but it's not once you're in the zone. Also, I'm big boned, so at 5'9" I weigh 160. At my slimmest I weigh 155, so you might not have THAT much to lose depending on your frame. As for your "hiding in your body"...I'm not sure how that works. I think if you lost weight you would feel good about it, and so would your husband, so it may be more about having a hard time doing it...I know when I have a belly and I start to gain weight I HATE MYSELF IN EVERY way and I don't even want to leve the house because my clothes don't fit right... When I'm in shape life is so much easier to run out and do things without a gut spilling over..you MAY be having a hiding issue, but like you said, if you can't afford therapy-just carry on and try to push past that. You can do it!
I'd add one more zumba and weights per week for starters and see what else you can add to burn some more weight off. Stop with the soda! Could you deal with the Schweppes flavored sparkling seltzer waters? Those are carbonated and refreshing. You could have a real soda once in a blue moon for a treat. I used to drink a glass of wine almost every night and I swapped it for herbal tea and now it's very rare that I drink wine. I thought it would be so much harder to give up that yummy treat but it has been fine. You can cut the soda!