Hi,
I have -5 diopters of myopia. I currently do not wear my glasses, even for driving. I have never worn contact lenses.
To go to the point: you can control your vision loss, and you can even improve your vision, although it takes work.
There is a whole field of eye improvement that is not recognized by eye doctors, so they won't tell you about it. I have done the e-mail course on Visions of Joy, which is basically several e-mails on vision improvement and you can ask Joy questions and tell her your progress. I have talked to her on the phone before and she is very knowledgable and has healed herself of her own myopia.
Another good resource is Meir Schneider. I heartily recommend his book "Self-Healing: My Life and Vision". It is extremely motivating to read about someone who was born legally blind and who can now drive a car without glasses. He also has programs available on Amazon.
I wish you luck. Try to limit your computer time and reading time and just let your eyes have a break. People take their eyes for granted. Learn to cherish your eyes and they will reward you with clear sight.
David