Simple solution. Take, say, 10% of your "new" profit on the way up.
Say you have 1000 as a baseline, you go up to 2000, you take out (2000-1000)*0.1 = 100.
Now you go from 1900 to 3900, and take out (3900-1900)*0.1 = 200.
That's what JayJaunGee told me he does, and that's indeed a very powerful strategy. I got almost 7x, and if I had taken 10% out I would be much more relaxed now.
This strategy allows you to become rich and protect you from becoming poor lol