just for me those feelings you are having is the depression talking to you. it puts a dark cloud of perception on everything. it is difficult to see things in their true perspective because of this.
you are a person of worth and value. your depression is telling you otherwise. we care about you and i appreciate that you trusted us enough to express how you are feeling.
are you seeing a doc for your depression? do you take meds for it? are you in therapy? these are good directions to seek out to eventually reenter the 'world'. it takes time and effort but it is worth it.
when i first got help i envisioned myself as a tiny dot in an infinite sea of black. now i look forward to see what each day brings. i wish the same for you too.