Is wearing glasses bad for your eyes?

I'm 14 years old, and I just had my new glasses for the first time on Thursday 8-29-13. My right eye is 1.25, my left eye is 1.75.Is wearing glasses bad for my eyes? I noticed that after taking glasses off, my eyes got blurred for a while, then clear again. How long can I wear my glasses? How long do I have to wait to see after taking my glasses off? And what is best to keep my eyes from getting worse (If possible, I would like to keep my eyes from increasing the number).
Other things about my eyes, not necessary for my question. I usually have pink eyes. I can't even let a little drop of water into my eyes while i'm taking a bath. It gets sore and I have pink eyes if I let water gets into my eyes (of course tears is not count).It happens before and quite a few years before I got glasses. My doctor eyes examination told me that my eyes are healthy. But still I feel worried. I care about my health, I want to protect my health like protecting a brand new expensive Iphone.

I have the same thing happen when I remove my glasses. I see blurry for a little while and then it clears up after they have been off for a while. I wear my glasses a lot and my prescription has actually been weakened the last two times I went to the eye doctor. I can't speak for others but my glasses have not hurt my vision. The only times that I don't wear them is that recently I have felt better reading and working on the computer without them and I take them off if I'm driving and it has become dark for the same reason.

I would like to know why it is blurry when we first take off our glasses but it clears up after a short time. I have actually noticed that with signs and posters when I'm sitting in the same seat.