If OP is anything similar to me, then what's the point? Why going outside try to socialize when it always fails? And when every failure hurts my self-esteem?
So instead, I decided to focus on things I actually *am* able to change, like daily exercises to stay in shape, writing stories, learning cooking and baking, learning new language, etc. And just release the sexual tension through inferior methods like porn instead of worrying about being introvert / socially awkward. Luckily, the sexual desire is not that high in my age.
Btw. I interpret your "go outside" as "socialize". Of course I'm going out - I love to take my backpak and leave civilization for a week.