Anytime I do make withdrawal from my portfolio already yielded profits. Instead of having all the money to myself, I discipline myself to conduct personal research and put some of my gains into one or two newly launched project before having to keep the remaining in my safe deposit box either it being USDT or fiat.
You have a good strategy for managing the profits from your portfolio, but participating in a newly launched project is very risky, so you should do a detailed analysis on a new project before investing. My advice remains for top coin investment options compared to new projects.