You seem to be suffering from social anxiety disorder and some confidence issues. Keep on working on yourself by joining various hobbies and regular exercise. Keep on meeting people , don’t expect to be confident overnight. Its a gradual process and takes time .

Hello Friend, Good that you are seeking a help here. Appreciate you for acknowledging such problem in you, which is the first step in addressing the problem . . Don't hesitate to take the next logical step by consulting a mental health professional like us online or directly to assess your physical and mental symptoms to identify the root cause behind such thoughts, feelings, behaviors and get  suitable recommendation to overcome this problem. Be positive. You will be alright soon. Feel free to reach out to me online through Practo app for further evaluation.