You're going to do better when you take the labels "healthy", "good", "negative", and "unhealthy" and put them far far away in general but from coping mechanisms and emotions in particular
It was truly life changing for me when a therapist told me this:
"A coping mechanism is a method you use to survive and if it keeps you alive it's doing its job. It's only a problem when you apply it to situations it's not meant for. You need to learn how to put it back in your bag of tools and pull out the appropriate coping mechanism for the situation. And if your situation changes back to one where your old coping mechanism still works you can go back to it."
Your coping mechanism isn't "negative" or "unhealthy". You're just trying to take a hammer to a situation you need a screwdriver for
It's about using the appropriate tool for the situation but the goal is always the same: survive
In a similar note you don't have "negative" or "bad" emotions
And you're not a monster for feeling a certain way.
You are responsible for your actions but even then an actions ability to do help or harm depends on your situation
Is it manipulative to burst into tears and go on a rant about how you're the worst person alive when someone corrects you?
Is the person asking just a friend, coworker, etc asking for something completely reasonable?
Then yeah that's not a good look
Is the person someone who will scream and yell and insult and maybe even hit you until you have shown what they consider to be the 'proper' amount of remorse and debasement?
Then no it's not manipulative, it's a survival tool
I know the internet hates nuance but seriously. Having certain coping mechanisms or feelings or having done certain actions does not make you a monster
But it is important to learn how to find the correct tool to a situation.
If you try to use a hacksaw to attach bookshelf to a wall it's going to go pretty badly and cause a fair amount of damage in the process
But don't beat yourself up for owning a hacksaw. At one point you needed it and at least it's there if you need it again