Can you give us pics? Do you know if it is presta valve or schrader? I have to give my presta valve a tap, because sometimes it sticks. Is there a fastener you tighten on the hose before pumping? If I turn it the wrong way, air doesn't go in the tire (just fills up the hose). I also pulled out a stem before mastering this simple task.

Floor pumps do make a huge difference--maybe check garage sales or Craigs list for one.

Keep asking for help--don't give up