Hi Vmodi,
Welcome to the forum,
As per your birth details i can see the combination what you are wearing at present are giving you more mental stress, and more over you can’t wear red garnet and blue sapphire and ruby with cats eye, so it would be better to discuss why you want to go for gemstones based on which i can recommend you the best suitable gemstone.
GOD BLESS!!!
Srinivasa Temkar