Beautiful mess

If you find yourself loosing your Iman (spiritual energy dropping) maybe about 2 weeks ago you used to pray at the right time and this weeks it's been kinda slow or after  salat you still feel some type of way, or anything at all that's dragging you back.
My sincere advice is to do a check on yourself.
Quran 13:11 "Allah doesn't change the condition of a person unless they change what's in their heart"  and Quran 7:27
“Verily,sayton and his soldiers see you from where you cannot see them”
The devil is evil and he likes to be in a place that's dirty and a place that's dirty doesn't necessarily mean "TOILET" the heart can be dirty, the home in general can be dirty, the body can be dirty.
If you find yourself in this situation, check the inside and outside of you.
To check the inside of you is to ask yourself if you are holding grudges with anyone,hating on anyone at that time or keeping malice. If there's someone, call them up and talk things through. Seek refuge with Allah from Sayton and ask Allah for forgiveness.
Tell Allah to help you see good in the person so you can move on and if it's someone who's not beneficial anymore but you still holding onto something, talk to Allah about it and free your conscience.
To check the  outside of you is check your own body and environment. Check your pubic area, check your hair, your armpit, your apartment, your bathroom,your laundry,your fridge if you have spoilt food.
Clean everywhere and take all the dirt out so the Holy Spirit can occupy much space in your body, mind and soul. Cleanliness is next to godliness.
You can even perform the Holy bath (ghusl) just to purify yourself and get your mind out of it.
You can also offer 2 rakkah, read the Quran and do something nice for someone (good deeds)
P.S when you find out what the problem is, make sure you don't allow it repeat itself so you're not in that situation every time.
Sallam Alaikum waramotullah wa barakatu.