"Every decision I have made - from changing jobs, to changing..." — Erica Jong quote meaning

Every decision I have made - from changing jobs, to changing partners, to changing homes - has been taken with trepidation. I have not ceased being fearful, but I have ceased to let fear control me. I have accepted fear as a part of life, specifically the fear of change, the fear of the unknown, and I have gone ahead despite the pounding in the heart that says: turn back, turn back, you'll die if you venture too far... In the past several years I have learned, in short, to trust myself. Not to eradicate fear but to go on in spite of fear. Not to become insensitive to distinguished critics but to follow my own writer's instinct. My job is not to paralyze myself by anticipating judgment but to do the best that I can and let judgment fall where it may. The difference between the woman who is writing this essay and the college girl sitting in her creative writing class in 1961 is mostly a matter of nerve and daring - the nerve to trust my own instincts and the daring to be a fool. No one ever found wisdom without being a fool.