You sound like a fairly young person, as compared to an old retired person like me. You have so much life ahead of you--good things are possible, even if they don't seem so now. Younger people are more selfish and you get wiser and more mature with the passing of time. It changes your values--you learn to respect people who care about others and that character is most important in choosing life partners.

There are a lot of us who have inherited our propensity for depression. Maybe having depression run in the family also leads to a less-than-optimal family situation growing up. That can predispose you to depression without any genetic help.

Do take things a day at a time. Make goals for yourself--keep yourself open to the possibility that you may someday realize some or all of them.