What are some effective stretching exercises to cure excessive curvatures on the back?

Lite

New member
Well the deal is i have excessive curvatures on the back.I heard stretching it would help one get a few inches of hidden height.i am 1m76cm and 16years.I already hang from a bar,30 minutes daily.How can I cure the excessive curvatures on my back naturally?Any help would be greatly appreciated.
 
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