Chaotic mind

I don't feel like expressing myself. I don't feel like talking to anyone.

I couldn't smile.

I couldn't concentrate and focus on what I want to do. I feel restless.

I couldn't think properly.

I feel frustrated or irritated for no reason.

I feel victimised. Why am I feeling like a loser before the battle even begin?

I seem to have lost my energy, motivation and interest of life.

Is this depression??? I keep asking myself why I am landed in this state again. I know that the greatest enemy is myself. I know that there is fear, regret and anger. How can I overcome them? Will I become mentally unsound one day? That thought frightens me.