OP I think you need to get yourself off all the dating apps until you’ve had time to find some counseling and work on yourself. There should be a self referral well-being service in your area who you can contact for a start. Go and talk to your GP as well. Ignore all the posts on here telling you to have fun and drop the shame, it’s not about shame, despite what all the cool girls tell you sending intimate pictures of yourself to strangers on the Internet is not healthy, and it’s not The sign of a woman who respects herself. You need to feel wanted and valued, that is understandable, but these men don’t value you, they just see you as wank fodder. For your own sake please seek some therapy to help you get over the trauma you’ve been through.
In the meantime can you take up a new hobby to give you something to focus on? Buy a keyboard and learn to play, or learn to draw, or take a Zumba class, anything. You deserve to be loved and valued, but you aren’t going to find it by debasing yourself to random men on dating apps, you’re just going to store up more guilt for yourself.
Good luck OP, you’ve actually done something incredibly difficult by leaving this horrible man. You’ve already shown that you are a strong woman. The next bit will be hard but it can be done, and you deserve to be happy and to have respect, from yourself and other people.
To the posters telling a vulnerable woman who has just escaped an abusive relationship to drop the shame and enjoy sending intimate pictures of her body to random men, shame on you.