Eren (Pony oc)

Mini info: Eren is a earth pony that pretty much negative. When he develops his powers when he gets older he has to learn to tame his emotions.
Backstory: As a child Eren's parents had been so busy that he thought being alone was normal. One day his parents never came. Eren never questioned it. He stole food anyway. When running way wasn't enough anymore, Eren started fighting. One day he saved a transwoman deer named Doctor Maroski. Apparently she wanted to go back home but Maroski was out right banned from her home kingdom. Maroski took care of Eren and let him work with her until he turned 18. She died on Eren's 18th birthday. He was heart broken from the fact that someone who cared about him. He doesn't know what to do now. He feels worthless and useless.
Moral/lesson: Negativity will be your enemy when it comes to your mental health being unstable.