I was recently reading topics related to child psychology and also,Sigmund Freud.I realised that concept of fixation to a particular stage and how things get worse if a person is not able to adapt itself to a particular environment or a learning stage. So my question here is that if a child gets fixated to a stage and is unable to resolve from it during that time,so does it becomes permanently ingrained in the child? Do they not recoer anytime later in life,ever? Even if they do,so some symptoms or habits shall remain forever? What are the causes to it and also what can be done as a remedy?