Hi!
Sorry to hear you're having trouble!
I have to ask: how's your stropping? Sometimes a sharp blade can be ruined by poor stropping, resulting in a rolled edge that is, I suppose, quite dull. What's the angle you're using? Too steep will not cut the hair, rather pull on it and abrade your face; too shallow will glide over the hair and nothing happens. You have to pay attention to the angle at all times and keep it at 30 degrees approximately... once you get it it becomes second nature. One other thing: go slow and light. A sharp blade and pressure on it will result in razor burn and a shave that is not close... but rather too close for comfort. Remember: straight razor shaving is supposed to a smooth experience. If it hurts you have to think over what you are doing and get back to basics... angle, pressure, stropping, you get the picture. And how about your preparation for the shave? What's the routine?
Hope this helps! Don't you quit on us! It takes time...