Are our thought processes really those of a very young child that has high jacked our emotional life?

Are our thought processes really those of a very young child that has high jacked our emotional life? Is this what addiction is all about – our gummed up thought processes, because we the sufferer  ‘thinks’ the trauma is still ‘alive’ in our heads? If the child within is provide with adequate trustworthy emotional support, could you persuade our child within that, since our trauma is dead, it’s over? If we did, would we be cured? We know childhood traumas ceased long ago – a fact we simply don’t believe – what would happen if we gently catch up with reality? We then keep desperately pressing for more, because we come to know think that our thought processes will clear and we will accomplish emotional growth into maturity.