How can I rebuild my self-confidence and overcome social anxiety?

Hi everyone,
This might be a lot and random. I am finally starting my weight loss journey. I lost 10 pounds so far and I am really wanting to work on myself for myself and my daughter. I am 25 and I haven’t had a hair cut in about 8-9 years. I haven’t really dressed up, fixed my hair, done my nails or my make up anymore. I have a very low self esteem now. How can I build my self confidence back up? How can I get rid of my social anxiety? I was never like this, I don’t know what happened to me… thank you.
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How can I rebuild my self-confidence and overcome social anxiety?
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