wouldn't it go backward in time if it goes faster than light? Light travels in null-time from point a to point b (light-perspective of course) - anything slower

wouldn't it go backward in time if it goes faster than light? Light travels in null-time from point a to point b (light-perspective of course) - anything slower, needs time to go from a to b. if i travel faster than light, i can - but i travel to b before i start at a. Maybe because this is not possible.