Don't fucking touch your face or rest it on unclean surfaces. Keep your hair out of your face too.
Get some sun, but don't get burnt.
Change your pillow case every night. If you have body acne, you could change your sheets nightly but it's way easier to just sleep in a clean t-shirt every night instead. You can get packs of plain white tees for cheap.
Change your towel if it starts to smell like person. Drying in the sun would work if you can do that.
Don't use dryer pads because they leave pore clogging residue on your shit.
Use detergent without dyes or scents added, it will probably say something about being good for allergies or skin. That extra shit doesn't get your clothes any cleaner anyway.
Moisturize your face after you shower, especially if it was a hot shower. When you scrub all the oil away, your body goes overtime producing shitloads of oil to replenish your skin, which you then scrub away, etc. A vicious cycle. Get some moisturizer for acne and use it after you shower and whenever your face is feeling dry and itchy. This will work wonders.
Take colder showers. Anywhere between warm to cold is alright. Hot dries out your skin.
Eat a cleaner diet. Less processed foods, less simple sugars like candy, soda, white bread/rice, etc. Eat more vegetables.
Take vitamin A and/or NAC daily. This isn't necessary, but helps.
Don't wash your face so much. Once a day is plenty, or even every other day if you didn't get sweaty or dirty. Even less should be possible, but I haven't tried it. Remember, your body's oil production will adjust so if you scrub it away constantly, it'll produce more. If you wash it less often, it'll produce less. There is an adjustment period though before it balances out with your practices.
When you do wash your face, make sure to wash your hands first. Being fresh out of the shower works too.
Don't stress too much. Chronic stress and anxiety is terrible for your skin, and pretty much everything else. Shit will kill ya.
That's all I can think of for now. Used to struggle with acne, now my skin stays clear as long as I do this stuff. Sounds like a lot, but none of it is hard or takes much time and having clear skin makes you feel and look so much better. Worth it in every way.