In your birth chart Cancer is the lagna which is a watery sign. Cancer is the 4th house in the natural zodiac which represents deep feelings and intuition. The lagna sub lord Venus is in 5th house conjoined with Mars. Mars gives a nature to lead others and to be head of your home. Venus and Mars are in the star of Ketu in Aries. Ketu gives dissatisfaction, dispassion etc.
5th house is occupied by Moon and Jupiter. 5th house is also a watery sign. It means that you are very intelligent and sensitive. Your emotions are high. You like discipline, if anybody does not follow discipline, you will flare up.
Again Moon is aspected by Saturn who is in the 8th house (tensions, anxiety). As Moon progresses very fast Saturn pulls down. So you have to put repeated efforts with frustration. Your 5th cusp star lord and sub lord are Saturn and Moon. Moon receives tensions etc from Saturn and influence your mind with tensions, wavering etc.
So the factors are : Your lagna is Cancer, a watery sign which gives imagination and at the same time sensitivity. 2. Dispassion is given by Ketu through the lagna sub lord Venus. 3. Saturn aspect on Moon in a watery sign Scorpio.
When Moon is not giving good results, you should not wear Pearl. It will spoil your mind. It will increase your tensions.
It is better to wear (Mars) read colour or (Venus) white or pink or green coloured clothes. Check the results. If you find pleasant moods, then go accordingly.
Good Luck
JVS Rao (KP system follower)