1997 Ford F-250 Turbo doesn't Boost and lots of blue smoke

Hi, when I start my truck up in the morning it kinda starts and then dies and i'll start it again and it will fire up. Then I let it warm up and start driving. It seem that when I go up even a little hill it will loose all boost (i have a boost gauge in) and it blow lots of blue smoke, also I can then hold the pedal to the floor, still no boost and it won't go over 1000 rpms and I have to keep pumping the pedal to finally get it to spool up and blow out the blue smoke and then it will drive fine. But it's getting worse and worse that even when I shift now I loose all boost and it takes forever to get it back. If you could help me out on what it could be and how I can repair it that would be awesome. I just put glow plugs in last fall, changed the fuel filter yesterday, and the problem is just getting worse. Any info would be appreciated. Thanks