By Veronika Bondarenko Recent cases have illuminated how severe they are and how they can be administered fairly rapidly and with little oversight. Four months after 1990s pop icon Britney Spears was freed from a 13-year conservatorship, a judge gave another former child star of that area the right to manage her own affairs. Now Amanda Bynes, who rose to fame through 1990s Nickelodeon shows like “All That” and “The Amanda Show,” has been released from a nearly nine-year conservatorship by a California judge on Tuesday. What Exactly Is A Conservatorship?The term conservatorship (called a guardi…