I'm doing this for the last 5 years.I m getting thinner and thinner help me out... and my penis does not erects properly...

On the off chance that this is a serious question...

Maybe you could just stop doing it all the time. That's probably the best answer. Find something else to do with your time.

Are you getting thinner because of this habit? That doesn't seem to make any sense at all. See a doctor.

If you merely masterbate once or twice a day this will not cause you to loose weight. So if you are losing too much weight you have other health issues. Please go see the doctor.

If you are masterbating too much, sorry just stop, you control that.

Are there any other side effects of mastrubating daily..?

And it is reaaly hapenning due to this.I went to a gym some 6 months ago and gained some good muscles.. but this habit of mine is making me loose all what I gain...

My penis remains flexible even when its erected... I can't get full erection most of d times.onl sometimes it gets fully erected.. it didn't happened earlier some 2 years ago... n I mastrubate daily for d last 5 years.
I was a failure when I had sexual intercourse with my partner.. help me out... we both are virgins.I don't want to be ashamed next time

Sounds to me like you have desensitised your member and this activity has become an addiction.

Basically STOP pleasuring yourself and find something better to do with your time, rather than bashing the bishop..