Its a dream related question

According to The Element Encyclopedia of 20,000 Dreams, "Dreams of your own death, or the death or execution of loved ones are extremely frightening but also extremely common. Such dreams rarely signify death. Sad or traumatic losses in dreams typically signify change,a fresh start and new beginnings. A dream in which you attend your own fundal of the funeral of someone else, or walked through a cemetery or crematorium does not mean that you or someone you know will die soon, but rather your dreaming minds simply preparing you for change."Basically take the dreams as a sign of change. Something big is going to happen to you, and your mind was just preparing you for it.

There are many theories why we have dreams, including:
1. "One theory suggests that dreams are the result of our brains trying to interpret external stimuli during sleep. For example, the sound of the radio may be incorporated into the content of a dream."
2. "Another theory uses a computer metaphor to account for dreams. According to this theory, dreams serve to 'clean up' clutter from the mind, much like clean-up operations in a computer, refreshing the mind to prepare for the next day."
3. "Yet another model proposes that dreams function as a form of psychotherapy. In this theory, the dreamer is able to make connections between different thoughts and emotions in a safe environment."
4. "A contemporary model of dreaming combines some elements of various theories. The activation of the brain creates loose connections between thoughts and ideas, which are then guided by the emotions of the dreamer."
5. "...a possible (though certainly not proven) function of a dream to be weaving new material into the memory system in a way that both reduces emotional arousal and is adaptive in helping us cope with further trauma or stressful events."
It shouldn't really mean anything that tragically impacts your life in any way, according to the above theories. There is no way dreams can precisely predict the future. To prevent getting anymore dreams about death, try to relax and think pleasantly. Do not stress. Drinking hot milk before bed can help. Also if it's too hot or cold in the room, it may cause unpleasant dreams. Stay comfortable as well, and don't think negatively. Avoid doing anything, such as watching scary movies, that may increase the risk of nightmares before bed.

Dreams are not predictions, but they can be reflections of our deeply rooted fears or emotions that we bottle up in our waking life. Dreaming about yourself dying could indicate that you have a subconscious desire to reinvent yourself or wanting to get out of a state of anxiety in your life. Have you recently been generally stressed or worried? If the answer is yes, I suggest talking to a friend or family member about your concerns, and engage in activities to help you relax. Like the previous poster said, it's also important to address the physical comfort of your environment to make sure you are not uncomfortable during sleep. Don't worry and just relax!

Dreams are a very individual experience. Two people could have a dream about the same subject, yet the meaning behind it can be different for each of them. While dream interpretation tries to put forth a meaning behind our dreams, no one can definitively say what every dream means for someone else. Personally, I haven't found dream interpretation websites to be accurate with any of my dreams. Dreams can be predictions; I've had more than my fair share of premonitions. But most of my dreams are meaningless, just mental processing of events during the day. Repetitive dreams typically have a meaning. I have also died during my dreams. In fact, I have died 24 times in my dreams. Once I figured out the meaning behind my death dreams, the dreams stopped. Reflect on yourself, your past, and what is presently going on in your life. Use dream interpretation as a guide, but just know that only you can truly say what your dream means for yourself. Once you discover the meaning, the dreams will stop.

I suggest not to dwell much in the meaning of a dream, it is just a dream, no one will ever know with 100% certainty the meaning of any kind of dream, it is just our subconscious mind generating random stuff.