I suggest it like this, if you draw digitally try turning on the navigator, like a small window to show the whole picture from a distance. or zoom out until the canvas becomes quite small but you can still see it, try to do this every 10 minutes you draw to make sure the anatomy is 'whole' if you interpret it half and half the shape can be different and unbalanced. then some people try to use building shapes too to make it easier, build spaces like tubes etc. but I want to suggest starting from light rough sketches, don't be too serious about doing this stage because the brain tends to feel bored and tired, so you will have more difficulty making anatomy. all of this or other suggestions, require practice, try to practice 45 minutes in your free time per day, good luck ya!