Possessed Nun dream. I don't know what it meant

(this dream has nothing to do with horror movies / I didn't watch any for months) I dreamt about a nun being possessed by demon or a deceased nun looking possessed I'm not sure. (also the nun doesn't look like conjuring demonic nun) On the floor of a corridor of my old school. I was just a bystander. Some nuns were running away. I'm not sure I was a priest or a nun( I'm a 22 years old

guy BTW) . I think it's like a Monastery. We were yelling to get someone here to exorcist quickly.

I saw this late at night. I was sleeping on the floor in a corner of my room. I'm kinda in a low point right now so I sleeps on floor most of the time these days.(Bed rotting but on floor). My windows were opened I didn't really care to close them these days. So basically I was sleeping on cold floor in the dark (it sounds bad now that I'm looking at it) . My room is a mess these times. I'm really depressed and burnt out and I had some bad thoughts (suicidal but I wasn't gonna do it) and I kinda was spiraling down with bad negative thoughts in my mind.

I woke up and closed all the windows. I was scared when I woke up. I wasn't on the previous mindset. I feel different (not spiraling in bad thought/don't feel hopeless/feeling of giving up has vanished)

I think I got closest to God before this episode. I prayed in the morning in a church with tears and really poured my heart. It was a good day. I was giving God all my problems through out the day before they even start to worry me,and let me tell you it was the most wonderful day. I gave God all my worries that day I never felt so relaxed or alive for years. Everything got sorted out and solved when I give God my anxious thoughts. This whole closeness lasted one day. When I was alone again at night (I was alone on daytime but I was busy with interactions or doing something) I kinda think back on moments of the day and fell into the pit again.

Few years ago my brother died. After that I've been distant with God. I prayed but not PRAYED. Recently I started to re build my faith's foundation in God.

I'm going to be hopeful and reach out to God again.

The days I felt closer to God and when I was participating in mass I felt the need to confession. I haven't done that in years. I will be doing that in near future.

When it troubles me i look at chosen series Mary Magdalene meeting Jesus it seem to be very comforting.

I wanna know what that dream meant it's troubling me..