does venus and jupiter in the 12th house could it mean prsion?

There are different possibilities.
Prison or Institution as a career, place of work, even be a Prisoner of their own thoughts.
!2th represents things surrounding an institution, prison, could be military or parole officer.

I answered a similar question for you about this aspect. It did mention there was a deep desire for material wealth and possessions.. and that get rich quick schemes (or any other suspicious activity ) should be completely avoided.