You say its pretty, you like it, you wanted it, don't let other people ruin it for you. Its not about them.
Love your pretty tattoo be proud of yourself, hold your head up high.
Your parents are wrong to put it down.
If people make you feel miserable, get away from them (if you can)
My friend had a big tattoo on her back, a trail of roses to signify change when she got divorced. She loves it even tho some family members have disapproved. Shes 40 by the way.