Some recommendations:
1- Put the Qur’an on your heart and recite verse 82 of Sura al-Israa:
وَنُنَزِّلُ مِنَ الْقُرْآنِ مَا هُوَ شِفَاءٌ وَرَحْمَةٌ لِّلْمُؤْمِنِينَ
2- Do sujud for several minutes each night and with a deep breath each time say: سبحان ربي الاعلى وبحمده (subhana rabbial a3la wa be7amdeh)
3- Eat honey and walnuts/almonds in the morning.
4- Go for the Ziyarah of Imam Hussain (a). It does wonders for such situations. Find a group and go, even it it’s difficult. It’s worth it.
5- Increase knowledge. Knowledge helps with depression.
6- Watch this video:
69- (3) Nahjul Balagha – No Beginning to God, Sadness and Sorrow – Sayed Mohammad Baqer Qazwini
https://youtu.be/jMlALV2EGOo