Your shyness can be a problem at times. The problem is that others confuse your timidity for arrogant confidence! If you have been timid your entire existence, you might not even recognize it. Consider communicating your uncertainty; those around you will be eager to assist you. If you want to attempt a new form of exercise but are hesitant to do so alone, ask a friend to join you. Or locate an app that allows you to ask a trainer to explain various exercises and how you should perform them. You may be astonished by how willing people are to offer advice.