Do you think it's possible to change an ancestral toxic pattern?

Let me explain: over the years I have come to the realisation that one single decision made by one of my ancestors created a chain reaction where every decision made by everybody else down the line was a consequence or result of that bad decision which has made life incredibly difficult for everybody else. But I became acutely aware of it at an early stage and made it my mission in life to break that pattern starting from the root cause which starts from deep inner work. So do you believe it's always possible to break patterns like this? And what does it take to do it successfully?
Do you think it's possible to change an ancestral toxic pattern?
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