Hey ! Since my childhood I went through lot of injuries and postural problems scoliosis etc . And I ve been able to correct them all as much as I could . I would start at this article , its gold it got 5 parts so read them all nation . c o m trainingneanderthalnomore 1 You got several options , but COPCO 2 wrote it down well . Anyway If you dont want think about it that much , do yoga . I know it doesnt sound that good and stuff . but so many rehab exercises for back , postural problems , shoulder stabilizers and overall health are found in yoga programs . and its not easy . Next thing is gym . BUT this could develop you more problems and disbalances than it would fix , form , technique are quite important , even more if your posture aint very good atm . Bodyweight exercising are very good start either and I would recommend it right after yoga for start .