A child feels delayed gratification and consequently frustration, which does turn to anger. This is the start of those anger feelings, and depending on the parent's reaction at this time, life-long patterns will emerge. If the child feels love and the consequent feeling of safety, they will then develop a higher tolerance to situations that trigger anger. Their life from this early start will be more flexible and they will have a higher stress tolerance. Otherwise they will cope less and react more explosively. If they have a lower tolerance to anger and stress, this will lead to destructive coping mechanisms such as addiction to drugs/alcohol or other excesses such as food, exercise, dieting or spending money. This inability to cope with stress leads to illness, both physically and mentally.
When examining yourself and your behaviour, know this is how you got to where you are today. These problems have manifested themselves in your feeling of anger, frustration and being overwhelmed with life, to a greater or lesser extent.
Stop and think – do you like the person you have allowed yourself to become? Are you enjoying the drama? The feeling that you're not responsible – the person you hate is that person is to blame. That person needs to suffer the same way you have. “An eye for an eye”. You're continually fuelling the flame, “I hate them. They ruined my life. I'm spiralling downwards due to them”. How consoling it is to know that it's not your fault.