I second the urging to call for some DV assistance. You need a safety plan. You and your son need to be out of this situation before it escalates (which is likely to happen when you try to kick him out). It has to be done CAREFULLY because you are at greatest risk when you try to separate.
PLEASE call and at least get some advice from the experts. I worked in the DV field for many years, and you and your son are in great danger.