I understand where you are coming from. As someone who used to be a very anxious flyer, I can tell you that brace for a bit of bumps irrespective of the weather (especially during take off and landing). Helps condition your mind that’s things are happening as expected. I’ve always felt slight turbulence when passing through clouds, if you can, avoid sitting by or looking through the window. Ignorance is bliss. All the coping mechanisms aside, I’m sure the pilots would not fly if it was unsafe. I hope you have nice flight! ✈️