You are wearing glasses for over a decade already
When you buy something that you like, it always has its drawbacks once you do not give proper care to it. It takes great endeavor if you want something with you to be long lasting and at the same time does not incur any disaster to your body.
If you have already bought contact lenses but fear wearing them because of what you heard from other people, all you have to do to make sure your eyes are safe is to ask your optician on how to take care of them. They will tell you on how to take care of both your eyes and your contact lenses.
If you feel irritation with your eyes when wearing your contact lens or kontaklinser, remove them and do not use them until you get a recommendation from your doctor. They will tell you on how to take care of your contact lens.