Self-confidence is not a gift from heaven, we are craftsmen. Similarly, we built a temporary or chronic lack of confidence following an unfortunate event or untoward behavior on the part of others.
In all cases, it is not inevitable, then take our trowels and hammers: Martine Teillac, psychoanalyst, gives us 3 keys to build self-confidence:
We often hear the expression "The Love of My Life", "My Soulmate", "My half". All these expressions that imply that there would exist somewhere a person "made for oneself" and by extension that there would not be much to expect from others in love.