I understand your just starting . And they are just picture of your setup. Something I was taught and have read multiple times and should be followed. No powders ... primers or components other than what your loading at the moment on or near the bench.
One lesson I learned the hard way is never put multiple loads in the same box.
I was working up a load for my revolver. I had 3 different charges one grain of powder difference in each . All below max .
While at the range a friend of mine accidentally knocked my bullet box over. Mixed up around 50 cartridges. Had to shoot or pull bullets . I shot them took them home and started over.
Not dangerous but a pain in the butt.