Most important point is to not FOMO, when other people pump, its time to sell, not the other way round. When people are greedy, be fearful instead.
Not all dip are equal. Before buying, do your own DD. Look at exactly what the stock is doing, ask if you have faith in the stock in the next 5-10 years. If yes, feel free to average down regularly and HODL. Don’t just buy it because it has dropped 50%. Do not catch a falling knife.
Lastly, diversify. Don’t buy all tech stocks. if another dot com bubble burst happen, you will be severely burnt. Get into different industries, both growing and stable ones. Buy some value stocks too to hedge against inflation