Hi,
It seems mostly correct.
But this is what I recommend;
Seperating the load:
. White load only (and this means exactly that - nothing but pure whites = shirts towels etc)
. Light colours (the whites with stripes in (better to run the risk of ruining the one white top with stripe/motif than entire load of pure white) pinks, yellows, light blues, light greys etc, always check if the fabric runs though)
. Bright colours (reds, dark greens, deep colours)
. Darks (blacks, navys, dark browns etc)
. Delicates and ones that you would do on their own.
Washing the clothes:
Whites - Use a laundry POWDER/POWDER Tab and NOT liquid as it doesnt contain bleach so will not get whites as white as powder will. Also wash at the hottest temperature that you can get away with (hotter than 40 if you can, I don't believe in this cold wash nonsense - you wouldn't wash your dishes in cold water so why your clothes? Yes its a slight bit more on electric/energy, but a lot more economical than replacing ruined clothes and washing machines (as they have been known to breakdown/smell because of cold water not removing detergent/grease)
Granny had perfect whites for a reason - because she boil washed.
One last thing, if you have a especially dirty white item dont put it with the rest of the load, wash seperately, as the excess dirt will transfer to the rest of the load; one wash cycle and washing detergent can only do so much.
Lights - Same as Whites
Bright colours - Use a liquid/colour care detergent here and you can come down on the temperature 30 degrees or even cold wash, as hotter water will fade colours quicker than cold, even with a colour care detergent.
Dark colours - Same as Brights
Delicates - Yes unfortunately you will need to follow the system as above seperating by colour (unless I'm wrong though, you wont be wearing delicates all the time? so this would be rarely)
Same rule applies with excessively dirty items for all loads dont put excessively dirty items in with lightly soiled clothes as it WILL transfer.
One final note, the biggest cause of shrinking clothes is the tumble dryer; even cotton will shrink a little. Use a low temperature in the dryer/or rack dry, it can be an inconvenience waiting for it to dry, but at least it will still be wearable.
Sorry if it sounds I'm teaching you to suck eggs but this is how I mainly do it and I have got clothes between 5 and 8 years old that people mistake me for wearing something new :) I'm not perfect, I have had laundry mistakes (ironically my biggest mistake is shrinking clothes in the dryer) but this is experience and luckily the exception.
Hope this helps