How to deal with abuse?

So I broke up with an abusive boyfriend a year and a half ago, I’m still having dreams and flashbacks of the sexual, physical and emotional abuse I went through for over 2 years, every time I have sex I cry. I don’t know if this is some form of PTSD or depression, It’s been a year and a half and it just feels abnormal to still be feeling this way after all this time. Please can someone give me some advice as I am so lost.
How to deal with abuse?
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