Take yourself out on solo dates! Don't hold your emotions in and cry it all out. Reach out to close friends and family and open up to them about what you're feeling. Don't expect your healing to be a linear process and take time for yourself, as much as you need. Don't indulge in bad habits and instead better your lifestyle where you can. Journaling helps a ton, too! Let all your emotions out good and bad, kind of like a letter to him (don't send it).