If you don't want to wear the eyeglasses to help you see the right vision, you could just wear the contact lenses to help you see things clearly. However, you should keep the good habit of hygiene when you use the contact lenses. Or else, your eyes may easily get the eyes infection. You should protect the eyes to some degree which will not make your prescription increase a lot.
There are lots of methods for you to improve your eyesight without surgery. However, it will work only if your eyesight problem isn't too serious. Food like carrot and apple cider vinegar or some other food contains vitamin A and D can help your eyesight get better.
Then you need to pay attention to your reading habit, avoid to read in dim or strong light. And relax for a while once an hour.
Massage your eyes when you're free. Do not over use your eyes.
Ok, considering your situation, you just need to get a pair of prescription glasses from the optical store where you live, but as you said, you don't want to get glasses, so you have to get contact lenses, or receive lasik surgery in the hospital, which might be a bit expensive. Also, pay attention to what you eat and make good use of your eyes. Just protect your eyes in every respect.