I took "switch it up every day" to mean he does something different every day i.e. doesn't have a solid consistent routine. Which is bad because it doesn't give your body time to adapt to stress, and prevents you from tracking progress. OP needs to be on a novice strength training program combined with a moderate-intensity cardio routine and a moderate fat loss diet.
The number of rest days you take depends on a number of factors, the most important ones being your per-session volume and your individual work capacity. A beginner on a full body split will have a lot of rest days since his work capacity is so low. An intermediate or advanced lifter will generally have fewer rest days, but work days will be focused on specific body parts or movement patterns. The number of work days can range from four a week for an upper-lower split, to six a week for a push-pull-legs split, for example.
