Where do I go about getting my life together?

I’m 21. I don’t have a license, high school drop out and I don’t have a job so I stay at home with my parents still. I’m just so embarrassed that I let myself be this lazy and so distracted by boys and going out that I never thought about my future or put myself first. I’ve been looking for work but without my diploma it’s been hard and on top of that I have anxiety and I’m afraid of interviews. How should I go about this? Ive been holding off for so long I feel like I’m never gonna get to where I want. 😔 I was thinking the first thing I should do before anything is get my GED so I can get a job and move out. I just need some advice on what you think I should do and where I should start