Were you wetshaving before you went to STR8? If you are a newbie to wetshaving this could be it. If not, keep in mind a DE shaver buffers the blade quite a bit preventing too much pressure and room for lots of mistakes. A STR8 allows total freedom of pressure and angle, so I would lighten up a bit and see what happens. You can always go back over the same area again.

As others have said, that blade really needs to be shave ready.