A few days back I bought a token from Launchpad. After they Launch on Pancakeswap I made 1.5X and sold. I was happy with that. But unfortunately, the token price grow double every day, then I bought again at the higher price. I thought this was a chance to multiply my portfolio again. Even though it grow 5x but O didn't sell that due to greedy behavior. Eventually, the project rug was pulled and skipped with all the funds. That means I lost everything even including my initial investment. This is how greed destroys us and scammer takes the advantage.
I have my own solution with that even though I rarely invest into new projects.
Not seeing the price movement of that token at all whenever I got a profit already.
Trust me forgetting and not seeing that token's price is very hard because every time, you will be tempted to look at it and see if it goes down or up, but it will all comes to one word and that is DISCIPLINE. It's very hard to not see at the price of it but if you will think of a way to not look it then that's good.
Maybe do other things for a few hours like going outside or simply playing online games. That might help you, but still there are some investors who can't control themselves. I don't blame the thing that the OP did because many investors are doing the same as well, but maybe this serves as a lesson not only for the OP but for us as well who are investing into new tokens.