Working out and not seeing any results.

I know I can NOT be the only one out there that works out 3-5 days a week for 30-60 minutes. I workout sweat do the burpies, crunches, planks, jumping jacks etc. The weight is still the same. The clothes are not fitting any looser. I am thinking that I have little devils going and sewing my clothes in the middle of the night. Also all I hear from people is change up my routine. They don't tell me what else I can do. Just to change it up. Well guess what professional trainers out there. All of your DVD's have the same stuff!!! Seriously. They are all the same except for things are in different orders! So for now. I am going to maybe do some more walking. See if that helps any.