It is high risk to think that that's the best option to invest. What you are doing is gambling, despite that you have mentioned about three tokens that you have bought using same pattern and you made profit from the tokens, how about the rest of the high numbers of tokens that didn't pump after they were listed?

There's no doubt that the moment some token gets listed, the price starts to pump and anybody that buys very early once it's listed can make a whole lot of profit as the price continues to pump but you also need to be aware that there were many token that dumped just after being listing on the exchange, they only spiked with one long candle and dumped immediately, that is why I said it is a high risk investment idea. You don't need to adopt such investment patterns if you are not ready to lose money unnecessarily. Just sharing someone's experience.