Re: Am I doing enough exercise?
You are not eating enough. To lose bodyfat, you have to burn more calories than taking in.
Also what is your diet like? Sometimes all that is needed is tweaking that. If you are not doing it now....try eating 5-6 smaller meals. Up your protein to about one gram per one pound of lean body mass and lower your carbs. Instead of any overly processed carbs....eat more complex ones and fiberous veggies. Drink plenty of water and cut any sugar.
It is not so much if you are doing enough exercise as it is what kind for your goals. Tae bo is great for cardio but you might want to include some lifting as well. Lifting moderately heavy weights for strength will force your body to work harder to burn the bodyfat and it also keeps your metabolism up longer too. Most women need to build upper body strength as well.
Believe me, despite the female myths about lifting.....you will not become a "female
Arnold" if you do. Women bodybuilders have to work very hard and keep to a strict diet to acheive that look. Women do not have enough testosterone to "bulk" like the guys.
Try a three day split lifting 4 sets for 10 reps. Stretch and warmup first. Rest a minute between each set. Do this for an hour/90 minutes. Cardio on the off lifting days (like tae bo) or some other cardio right after as a "cooldown".
The body takes stored bodyfat from all over to burn as energy....there is no such thing as "spot reducing". Performing crunches is great to get those firm and strong but you really need to work on the rest of the body. Doing upper body exercises will build strength and lower ones will help keep those curves. Make them more "defined".
Going to a gym is a good idea. I took college women's strength classes for a year when I turned 50. Started out at 245lbs and right now I am 178lbs (am 5'6"/largeboned and 52). Lost 62lbs of bodyfat and gained 20lbs of muscle. Relearned to eat properly in the meantime as I used to eat when I was hungry only and overeat the bad stuff when I did. Right now I can fit in premarriage clothes sizes (33years) although the scales say I weigh 20 pounds heavier than then. Muscle is denser/heavier than fat. The exchange is fine with me.
It will take time and learn patience. It took time for the body to store the fat and it will take time for it to be burned away. But losing 5lbs a month can be done depending on the intensity. BUT do not use the scales at first, your wardrobe is a better indicator of the changes. Keep a journal of your progress and exercises.