You, yourself, is very beautiful. Everybody has unique features about them that make them beautiful.
Now there are a few ways to make that beauty stand out a bit more.
First off, remember that acne is an issue that many individuals have. I had horrible acne growing up but now I've learned to manage it. The best option is always to visit a dermatologist (ask your mother about it) but if you can't visit one than here are some helpful tips to get rid of acne:
-Use scrubs and exfoliaters on a daily basis. If you had normal skin you wouldn't do this but with extreme acne using harsh scrubs will do wonders.
-Try spot treatments (I recommend Terminator 10). If you use spot treatments than make sure you put lotion on afterwards because spot treatments will dry your skin out.
-Drink lots of water. Water flushes out toxins that cause acne.
You may also want to start looking at basic makeup. Wearing some powder or a light foundation will help hide the redness associated with pimples.
Having a slightly hairy body is nothing to be ashamed of. Many, many women have mustaches and hairy arms. Most women with mustaches will do a little bit of shaving around their lip area. Ask your mother if she can show you how.
Lastly, learn to love yourself. Everybody is beautiful in their own way.