Imagine if Jesus were to write you a letter, addressing the feeling of helplessness that seems to swallow you alive. A Catholic monk did just that (please note -- these aren't inspired words direct from Jesus, but Biblically-informed thoughts on the way Jesus would likely encourage you).
I know those moods when you sit there utterly alone, pining, eaten up with unhappiness, in a pure state of grief. You don’t move towards me but desperately imagine that everything that you have ever done has been utterly lost and forgotten. This near-despair and self-pity are actually a form of pride. What you think was a state of absolute security from which you’ve fallen was really trusting too much in your own strength and ability…what really ails you is that things simply haven’t happened as you expected and wanted.
In fact I don’t want you to rely on your own strength and abilities and plans, but to distrust them and to distrust yourself, and to trust me and no one and nothing else. As long as you rely entirely on yourself, you are bound to come to grief. You still have a most important lesson to learn: your own strength will no more help you to stand upright than propping yourself on a broken reed. You must not despair of me. You may hope and trust in me absolutely. My mercy is infinite.
-- John of Landsburg, a sixteenth-century Catholic monk, in his classic A Letter From Jesus Christ
And now for some words that you don't have to imagine, because we know that Jesus truly said them:
And Jesus came and said to them, “All authority in heaven and on earth has been given to me….and behold, I am with you always, to the end of the age” (Mt 28:18; 20).