Someone who has had control over you at one point in your life will always have control over you unless you consciously decide to clear it, even if they are no longer physically in your life.
If you look back at all of your relationships, albeit seemingly disparate in nature, they're all different version of the same thing. I mean work relationships, situations, romantic relationships, ANY and all circumstances/people you attract into your life. You're attracting them because subconsciously there is a MATCH to a circumstance/person that came before, that you're still working out.
You'll then see that NONE of those situations were about the other person in the end. You might think it is, that's how our conscious minds like to direct our focus. It likes to trick us. It likes to convince us other people are the problem and we can find the solution. In reality, the people this is "about" are just showing us what it is we still haven't cleared inside of us. We ARE the solution, but the problem isn't what you think it is.
It's important to acknowledge that all of these things, even though they're difficult and can shake up unresolved uncomfortable feelings within us, are here to SHOW us something- to bring something to consciousness so that we can move forward. We need to thank it instead of sinking into victim behavior of "poor me, why did this happen again?" it's giving us the information to move forward.
Sometimes you'll see that all of these circumstances collide and you fall into a rut. It might seem bleak, but this is your ego holding on as best as it can while you upgrade in vibration. It needs to create as many distractions as possible, but the breakthrough is near. Once you learn that you are not your small, egoic self and that nothing you think matters so much is actually important, and that your power comes from you as spirit, that's when you understand your truth.