ok,

studying expressions and variables.

I have no idea how this works after even after viewing the tutorials.
Is there any simplistic approaches when using variables, becuase I'm not even sure when to use expressions.

can you provide an example of what you're trying to do?
it's always easier to help with a real example.

well I was trying to have particles orbit in a figure 8 around an object. I got them orbitting just can't figure out the figure 8.

Particles were also so suppose to be killed completely at frame 120…but they don't really die they just slow down.

Another thing I was trying was to convert text to points and displace the points with an object(sphere) I tried using a force then a collision with interaction but that isn't getting me anywhere and I have no idea what expression to use or whether I should just can this idea all together.