The biggest changes you have to make are in the weight room to correct that.
Those are the 7 exercises you want to do.
For nutrition, eat more protein. If you're skinny-fat you probably have trouble building muscle, so don't be shy with the meat portions. Leaner meats over fattier meats may be a good idea since you have to burn through dietary fat to use stored fat. I'm not saying suffer through London broil and chicken breast, but a sirloin steak or a pork loin is a better option than a ribeye or spare ribs. Moderate fat/moderate to high protein/lower carb on more sedentary days with lower fat/moderate to high protein/moderate to high carbohydrate meals immediately after a heavy weight session may help you correct this faster.
Don't put your trust in anyone on this forum, including me. You are the key to your own success.