Unless you have a dream where the Lord is present or He makes it known to you that it is certainly %100 from Him, do not regard it. For if it is not from the Lord, it is from demons who only want to make you feel negatively and hurt you. Such as fear, guilt, condemned, sad, lonely, isolated, far from God, like God doesn't want you, etc. etc.
In my years of following Jesus, living in obedience unto Him, God has given me less than 10 dreams that I knew were from Him. I knew they were from Him because one of several reasons. Either Jesus was present, the words I heard could only come from God, the dream was extremely vivid, real and prophetic, or the dream was an answer to my prayers (such as when I prayed to see hell).
Ecclesiasticus 34:1-7 KJB
"1 The hopes of a man void of understanding are vain and false: and dreams lift up fools.
2 Whoso regardeth dreams is like him that catcheth at a shadow, and followeth after the wind.
3 The vision of dreams is the resemblance of one thing to another, even as the likeness of a face to a face.
4 Of an unclean thing what can be cleansed? and from that thing which is false what truth can come?
5 Divinations, and soothsayings, and dreams, are vain: and the heart fancieth, as a woman's heart in travail.
6 If they be not sent from the most High in thy visitation, set not thy heart upon them.
7 For dreams have deceived many, and they have failed that put their trust in them."