Interesting Stories of Investing Biases

Sir, kudos to you. You have nicely covered most of the investment biases. Most of the retail individual investor goes through these biases. Your solution to get over it also seems practical. Can you elaborate on such situation wherein a particular scrip moved by, say 100 percent and still has potential to inch up. As we have seen / purchased it at lower price hence could not add further. It happens often in long term investment. Waiting for your humble opinion…