The fortune teller said that my horoscope was very weak.

Ask who said that you are the same person with a weak character and a full yang. This character sounds extreme. Actually, you can look on the bright side. Too weak belongs to yin, and full yang belongs to rigidity, which can be understood as combining rigidity with softness. It is good to be able to bend and stretch, to attack and retreat, and to keep these things. If you want to break them, you may really break them.