screen printing t-shirts

I don't understand whenever I apply ink to my screen it doesn't seem to go through onto my shirt. can someone tell me what am I doing wrong.

steveastrouk is right. the area between your screen and the shirt is very important. most believe make the mistake of laying the screen right onto the fabric. you need a gap of about 5mm. as you push down on the screen, it should be tight enough to "rebound" off the fabric. this should help.
Can you definitely see you have clear screen where you should have ? Have you checked the clearance to your shirt from the screen ? Have you got a good edge on the squegee ? Test print onto paper first !