I'm pleased to know that your first experience of EFT felt positive for you and hope that you will continue to use the technique every day because, where an experience has been cathartic, it's tempting to think 'great, solved, sorted' only to find that 'o no, it's not' a few hours/days or so down the line.
However, understanding where your ever-ready wellspring of anger has originated and being able to find ways of releasing it without causing harm to others is merely one part of your inner personal transformation, albeit that it is one which I chose to give priority in my earlier response because of the risk to your dc if you hand the physical abuse that you endured as a child down to the next generation.
Your understandable anger at the way you were treated in your childhood is justified but, unfortunately, you have held on to it to the extent that it has become the only way that you are fully able to express your outrage at what was done to you in the past by unleashing it when you perceive that others are doing you wrong in the present.
For some, such anger can be constructive. It can drive them on to succeed, to achieve, to 'show them they shouldn't have done that to me', that 'they were wrong about me', etc.
Conversely, this type of anger has many chasing their tails in endless frustration thus negating any chance they have of achieving or becoming the person they want to be.
Anger is a powerful energy; if we live our lives in a dull grey haze of general unhappiness and misery, the sudden shock of anger coursing through our blood and temporarily re-energising our bodies can remind us that we can still 'feel' intense emotion, but any 'feel good' factor is short-lived especially if 'going into one' has resulted in our causing harm to others.
You may have used your anger to define you, to validate yourself, to justify yourself, but now it's time for you release your grip and let go of your historic anger so that you can find ways to become the loving, nurturing, caring woman and parent that you so desperately want to be.
Regardless of what words your mother may have used when she was beating you, the messages that you received were that you were 'not good enough', you were 'worthless', you were 'of no account', you were 'valueless', you were 'unloveable'.
You perceived that your siblings were treated differently to you. As the eldest, you bore the brunt of your mother's rages and if you believed that your siblings were treated better than you this, in itself, would have compounded your feelings of 'not being good enough'.
Again, I suggest that you view other Brad Yates videos such as Clearing Guilt and Shame, Clearing Resentment, and in particular his video 'You Are Worthy' because, despite what you may currently believe to the contrary, YOU ARE WORTHY, YOU ARE GOOD ENOUGH, YOU ARE LOVEABLE and, although you may feel a sense of shame when thinking of some of the things you may have done in anger, THERE IS NO SHAME IN BEING YOU.
FTR, I've recommended EFT to you because of the powerful affirmations especially contained in Brad Yates' videos. In addition, Brad's manner is appealing - he comes across as kind, thoughtful, and caring; the type of guy I'd be happy to chew the fat with over a coffee or ten. Although, ever the cynic realist, I'd like to know what his demons are - and please don't ever be fooled by cool, calm, and collected exteriors because we all have some, and sometimes a lot, of those fork-tailed imps on our tails.
As for self-control and self-discipline, they do what they say on the tin. Being able to control ourselves - control our impulses and responses when interacting with our environment and with others - sets us apart from the animal kingdom.
Exercising self-control is a skill we teach our children; exercising self-discipline is the modus operandi we use to maintain the roofs over our heads.
Unless we are afflicted by serious mental illness, we can control our thoughts. We can chose what thoughts we want to entertain and despatch any unwelcome ones back to where they came.
This is in no way suppresses our thoughts; indeed, it is something we do frequently when we have to concentrate on the task in hand rather than indulging our desire to drift off into a reverie about Johnny Depp or winning the lottery.
Speaking of Johnny Depp, I wholeheartedly recommend the film Don Juan del Marco which he made some years back with Marlon Brando. Apart from the incomparable acting and memorable storyline, it should particularly appeal to those who recognise that all things are possible and thaat pyschotherapy is but another way to access the ever open 'doors of perception' that lead to personal empowerment.
Thus ends my second marathon response on your thread - if I keep this up for a while longer I'll have enough for a book 