The more often we noticed something happening in the past, the more we think it could happen in the future. In other words: something we haven't noticed happen yet is not likely to happen in the future, according to our own estimates.
However, as the frequency of our perceiving something is based on the frequency of reports and not on exact measurements, the availability heuristic is a poor advisor. Instead, you should base your decisions on careful analysis.
Successful investments are often associated with talent, unsuccessful ones with misfortune. We tend to overestimate the predictability of an event that has surprised us and say “well, I could have seen this coming.”
To avoid such false memories, keep an investment diary. It’ll allow you to understand investment decisions and learn from miscalculations.