Don’t deny or sublimate the feelings.
Do a cheshbon hanefesh and pray like you’ve never prayed before. Establish a genuine, intimate, personal relationship with HaShem. Talk to him like a friend and cast your burdens on Him (Tehillim 55:22- Cast your burdens on HaShem and He will sustain you). Get your hands on Reb Nachman’s works and maybe some sifrei mussar, as well. Stay in the light. Develop a good spiritual practice. And if you use your pain as a way to help others, go for it. Hesed has gotten me through some of the worst times in my life, as has the spiritual practice of hitbodedut. It really works wonders.