what is it you are afraid to see out side, or is there something out side you are afraid will be seen or judged about you?
maybe just try imagining the birds or something outside, and the trees, the wind blowing and all the excited particles of oxygen making up the air...expand your environment with the realization of how, its all relative. the air we breath is the same as what the birds fly in, and the nests they leave each morning is the same as our own bed or home.
... etc etc this is our environment, we are all connected in one way or another to everything, this includes each other ~ harmony can not exist with out you.
can you imagine judging others so harshly that they should feel un-welcome in the world?
i doubt it, and i doubt anyone you meet will feel that way either, and if they did it is because they have met enough people such as yourself.
this is the power of placebo, we are a big fat chem factory, one that produces fear and lust or contentment ~ just as assuredly as you have tricked yourself into feeling the negative charge, you can switch over to the positive one, by producing the stuff of love by giving it out - at all costs even it means taking a walk and saying hello to whom ever, just because they deserve it the same as you.