If you have issues putting on eye makeup you can try this. When putting on pencil eyeliner, close one eye with one hand, pull it taught, and apply the eyelines with the other hand, making little connecting lines along the edge of the eyelash. To put on mascara, put the back of a business card behind your eyelashes, pin your top eyelash against the business card with one hand, and apply it (getting some mascara on the business card) with the other hand. The bottom lashes are easier - if you smudge mascara on the skin below your bottom eyelashes you can just rub it out with makeup remover on a cotton swab or paper towel. Don’t bother putting eyeliner on the bottom eyelid - it looks kind of goth and doesn’t look as natural.
If you screw up you can just close your eyes, remove it by applying makeup remover, and then dunk your face in water to remove the makeup remover. Amazon has some cheap makeup (just read the reviews and stars) and there are some add ons that can search the internet for the same item as on Amazon but cheaper. You can also try https://smile.amazon.com/ to give a little bit on money to charity.
I don’t like buying from the drugstore because you can’t read reviews. You don’t need to do full face makeup with powder - tinted moisturizer is enough for a natural look. If you want to do full makeup there are guides on WikiHow - just Google “WikiHow to do makeup”.
Personally for acne I like to use a spot remover ex. spot gel with benzyl peroxide for individual isolated pimples. Experiment with different things depending on the kind of acne you have or see a dermatologist if it is bad. Perhaps a dermatologist can also recommend acne safe makeup or you can just Google for it.
This is super embarrassing but when I was manic I created a shit ton of social media posting and there is a video where I put on eye makeup.
Eyeliner application: https://youtu.be/xKt0gIglLFI?t=288
Mascara application: https://youtu.be/xKt0gIglLFI?t=429