I think noone of us would do well 1000 years ago.
The language barrier is one point and an important point. Another point is the general behaviour, society has chanced a lot. I don't know what those people would do to someone who talk and acts in a strange way.
Hunting may be prohibited in most areas, poaching may be punished harshly.
So what kind of job can we do? most of our current jobs are useless (I work in the IT buisness ...) but even most crafting jobs will be useless because things will be done in a much different way. Most workers today rely on modern machines which will not be available. Only people who are trained in classic craftsmanship will stand a chance (and by trained I mean trained, not "I've done some blacksmithing in my backyard")
So, I don't think it wil be easy, I think most of us will end somewere as an unskilled worker who has to do heavy labor.
It may be possible to do some academic work (math perhaps) but I don't think it will be easy to get "into" those jobs. Medicine is difficult, I know how to deal with normal, small wounds, but I have no clue how to treat illness or how to make drugs.
I know some
Talhoffer and other swordfighting moves (mostly japanese though), don't know if that would help me...