1- Be patient. It requires time to move on. Believe that you’ll be able to move on. Many people experience this same struggle but with time they’re able to move on.
2- Keep yourself busy. Don’t leave free time.
3- If you can, go for Ziyarah or Umrah.
4- Do sujud for several minutes each night and with a deep breath each time say: سبحان ربي الاعلى وبحمده (subhana rabbial a3la wa be7amdeh)
5- Before sleeping, say 100 times لا اله الا الله (la ilaha illa allah) and take a deep breath each time
6- Read this Dua’: