I kind of had something like that happen to me when I was 17. Not to that etreme but close to it. I moved one state over started living with a different family, lost all contact with anyone I knew for about 3 years and started completely fresh.
I was kicked out of my original home by my step mom who is mentally unstable putting it mildly. I lived from the age of 9 until I was 17 with her constantly telling me I was worthless and not going to make anything of myself and constantly comparing me to her 30 year old son who was "perfect" I have major depression, Bipolar disorder and am only recently getting through a severe inferiority complex. But when she got rid of me I was devistated at first but the complete removal of myself from the town I was living in and the people I knew helped me decide who I wanted to be as an individual and it was the best thing to ever happen to me. I am 23 going on 24 next month and I never thought I would be making comics online with a future goal of doing it as a living.
In my case the answer with the knowledge I have now was I wish it had happened sooner. But right now, no I love where I am and the people I know. I can say though that all the struggle I went through was worth it because it really helped me evaluate my life and see who I can and can't trust and helped me look inwards on myself and see where my worth really is. I study philosophy and psycology now and it really helps give me a reality check and helps me focus on what I should do next.
If you have low self esteem shoot me a message and I can direct you to some really helpful youtube videos and we can also talk. I love meeting new people as it is ^.^