I have a handful of specific memories that if I even think about at all, I completely break down and start crying. I can’t even handle thinking about it
Yes, get a therapist and work through those specific things. The chances are that those things colored the way you interacted with the world thereafter. They changed what you expected, they changed how you interpreted the actions (or inactions) of others, and they probably changed the expectations that others were picking up coming from you.
I’d say that you ought to consider that you have an unrealistic view of yourself, meaning a harsher judgment of you on yourself than you would think at all just if you judged anyone else the same way. You are not, after all, seeing yourself or treating yourself in a way that Christ would see you or that a Christian ought to view you, right?
Remember that “satan” is the word for “the accuser.”
Then I heard a loud voice in heaven say:
“Now have salvation and power come,
and the kingdom of our God
and the authority of his Anointed.
For the accuser of our brothers is cast out,
who accuses them before our God day and night. Rev. 12:10
Once we’ve internalized a certain way of thinking, it takes work to un-learn that habit. I would say that even afterwards, this needs to be treated like a trick knee or some injury that is liable to flair up and need treatment, rather than a personal flaw. You have been suffering from a wound that did not heal right. Just because you can’t see it doesn’t mean it is an “imaginary” wound instead of a real one. Some wounds heal up on their own, but sometimes professional help is needed, when the wound is serious or does not heal properly. Waiting on getting help usually does not help. It just prolongs the suffering unnecessarily.
You’ve been wounded and you didn’t heal properly. Don’t punish yourself for that. Get help. It is probably the key to unlocking your ability to give and receive the love that you have to give.
The good news is that you can learn to see things differently. You can learn to overcome the specific things that hurt you every time you think about them right now. You can even become more loving and more available to others than someone who has never had to work through what you have to work through. Get some help, and you may find the lesson of the Crucifix being lived in you, which is this: God doesn’t make the worst things happen in the world, but God can transform the worst thing in the world into the best thing in the world. God can transform the passion you’ve been going through, too.