Space travel, approaching the speed of light with unexpanded mass.?

The paradoxes that faster than light travel evokes should surely indicate yours is an impossible hypothesis. Returning in your craft you could see yourself coming the other way, ad infinitum. Landing back on Earth you could meet yourself and hand over your spacecraft so you need not bother to make one in the first place. Einstein's theories have no such paradoxes, even the famous so called Twin Paradox has been proven not to be a paradox. I think you may need a different approach to prove the great man wrong, and all the best with that.