How do you build up your confidence again?

When I was younger, I used to be able to go up and talk to anyone, say anything and not care what they thought of me, but as I’ve gotten older I’ve become really self-conscious and have lost that confidence. I feel part of the reason I had so much confidence, though, was because at that time I was pretty suicidal and didn’t really care about anything I thought I’d just off myself in a few years, now that I care about my life, I really care about what people think of me for some reason I don't know why it would be correlated with caring about my life but to me it is.

So how do I become more confident without being like I was before?

if anyone actually reads all this thanks any advice would be greatly appreciated :)

How do you build up your confidence again?
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