i locked my sister in her room, my parents and sister forgave me, but i still had to suffer a strict and harsh punishment, is this right ?

[tanya1234]

Last thursday i had a row with my sister who is 18, because my sister is clastrophobic and hates confined spaces i locked her in her room, i enjoyed her kicking and screaming to be let out, then my friend rang me, i got distracted, forgot about my sister and went out, 6 hours later my mum came home and found my sister locked up, she was crying, she had 2 or 3 panic attacks, missed her driving lesson and a date with her boyfriend, she even had to go to the toilet in a flower pot, my parents went mad and said the punishment must fit the crime, they said i would be spending a whole weekend locked in my room ( last weekend ) when i returned from school friday evening i was escorted to my room, i lost my tv, phone pc etc, after dinner i was locked in for the night, the next morning i was woken at 7am ( part of my punishment ) after a shower and breakfast i was locked in for the rest of the day, as i have exams this year i was set tons of schoolwork to do including, maths, english , french , georgraphy, biology , and science, i was also set three 4 page punishment essays to write one on UNACEPTABLE BEHAVOUR AND PUNISHMENTS, another on THE PURPOSE OF HARSH PUNISHMENT and another on WHY ITS IMPORTANT TO SHOW RESPECT TO OTHER FAMILY MEMBERS , i had to eat in my room and was only allowed out to use the bathroom, my parents said what i done to my sister was TOTALLY unacceptable that why a harsh punishment was required, what do you think ? did i deserve to be punished ADVICE PLEASE ? and please be honest ?