Tired of putting all your work in the gym and not getting the expected results? Many people show determination and constant effort, but do not reach their goals. If this sounds familiar, the next logical step is usually to find an experienced personal trainer. But, if you are not yet ready to take that step, or if you simply prefer to do it alone, here are 15 tips and strategies that will help you build strength, gain muscle mass, lose fat, increase your endurance, and maintain healthy eating habits. . So now, get back to your running shoes that you bought online and go back to the gym!