Learning is supposed to feel uncomfortable (link to HBR)
If we want to get in shape, we exercise--taxing our muscles to the point of pain and exhaustion. We know that our bodies respond to that discomfort by becoming stronger.
But in other areas of our lives, we too often abandon projects and plans that prove painful or exhausting, taking the discomfort as a sign that it is "not right for" us. And sure, not everything we try is worth finishing. But the presence of discomfort in the process is not the way to tell whether it is worth doing or not, because there will be pain and exhaustion in everything new.
Discomfort is the way we tell our bodies and our minds they need to become stronger.
Trust yourself to survive, trust that you can handle pain, and go forward hand in hand with the pain.