Differences with "Very"

Contrary to so and such which emphasize/intensify what we already know, the intensifier "very" introduces new information.

e.g.  Kirsten Stewart is a very bad actress. New info -> very

         I’m sorry twilight had such a bad actress. ( such + adjective / adverb + noun ) Already known -> such / so

         Kirsten acted so badly in Twilight. ( so + adjective/ adverb ) Already known -> such / so

The same thing happens in the case of too and very. They do not mean the same thing. We only use too when we are describing something negative.

e.g.  I've got too much work. I can't come out tonight.

        This job is great because you get paid too much money.