You will be surprised by what you find out. This is the best kind of dream for you to have or it can be the worst all depending on your disposition in life.
If you have a dream about a DJ or a dream in which you are a DJ then this means that you want to entertain. Being a DJ can be a very inviting vocation because it allows you to both play music that you like and even make music that you like to some extent, all while using it as a platform for social networking. Obviously this is a more optimistic and twisted version of how it actually works. Not everyone gets this glamorous life of making friends and of entertaining them all the way through, however in your dreams you can imagine just about anything. Basically a dream in which you are a DJ or in which you see a DJ is just a sign that you are aching for a massive social interaction. You may not be able to just go out and become a DJ just to have a quick party but there are ways that you can go out and make sure that a massive social interaction does occur. To stick to things closer to the dream that you had, you could invite a lot of your friends to a DJ show that is happening near you and just dance and have a good time. You could also just invite friends to your house for a party, play some loud music, have a good time, just do what you want to do and have fun while you are doing it; this is the main thing to remember.
A good DJ knows how to entertain people but it is also possible that they are being entertained for the wrong reasons which may have an effect on the way your dream is interpreted as well. Sometimes a person will go out with their friends to see what is going on at a DJ show purely because it is funny to do so. The music is completely disrespected, it just serves as a pretext to get drunk and dance to something. Unless you are out seeing Skrillex or someone else of similar magnitude these days then you are probably not going out to see the DJ because you own all their albums.
In fact DJ’s are known notoriously for not putting out nearly as many albums per original creation they make, so it would make more sense that you were being ignored in favor of listening to some “stupid” music. The point here is though, without getting too far off context, that you have this kind of dream normally because you want to make an impression and showcase your skills, so you have been doing stuff like this in real life, but the problem is you feel like you are not being respected for it. You are trying the best you can, but your skills are not being appreciated and this is really getting to you. Don’t let it, or else you might have even bigger problems. Talents are subjective to a certain extent and criticism is the risk you take when you display your talents to the world.