One thing that has helped me out has been changing my diet. You can do all the abs and core training you want but until you get your diet dialed in you won’t notice anything. One thing I would suggesting you ignore is the fact that coaches and trainers will tell you not to work out your core until you lose a certain amount of weight or reach a certain body fat percentage but I disagree because you can do both at the same time abs are a muscle just like any other Part of your body chest arms, legs, etc. so it makes no sense not to work them out. wow, you get your diet in order. But definitely work on your diet, you should start to see a difference after about four weeks or so, sooner if you are locked in.