Re-Front driver side window
 

Hey ,

I have 98nissan200sxse 1.6lt. And front driver side window has a problem. Powerwindow motor is running fine, but the hook which holds the whole glass is not holding the glass. It will roll up perfectly but while going down it won't. we have to slide the whole glass downwards with hands. So is this thing I can fix it myself or I have to go to dealer to fix it???????????????
Any kind of help ASAP will be great and appriciated.
Thanks in advance