vague

There are days when I feel so insufficient. I feel so small. I feel smothered by all my shortcomings and there seems nothing good in life. I feel tiny, unimportant and so vague. Something nags me and I feel irritable, but I can't seem to put my finger on it. I hate the sight of everyone and everything. I hate going out. Those lessons and hours of lecture bore me to death. Nothing interests me.
It is this nagging feeling of insufficiency which has been getting to me lately. It is but an ephemeral feeling which rises especially at the sight of her. I feel mean (read bitchy), yet I know it's so unreasonable.
I feel cheated. I feel MAD. I want to be mad, raging mad.
I simply want to scream at the top of my lungs.