Hello,
The real question behind investment is when to take profits and if you can sell or you don't have the courage.
My opinion in this matter is very simple, if it's life changing money don't wait, sell, you will have time after that to support your favourite projects, don't be greedy.
Imagine that you are making profits in a coin that will make you free and you will not have to worry about money for the rest of your life, selling will make your life good and without worries. After you sell you can find an oportunity to come back in the market with some part of your profit money, you will find the oportunity and don't FOMO into it.
When your life is all set and good, buy some coins from your favourite project, this strategy will make a big difference in your life and a big difference in the project. The money you are putting in the project it's not stress money, you will not worry about dips or a bear market because you are just there for the project nothing more.
I can't say this enough always invest only what you can afford to lose, if you can't sleep at night because of your investments you are investing to much. The quantity you invest should be one that doesn't make you stress about it.
Best Regards,
Cryptopeach