Dreams failure

I dreamed I had heart disease and had to have surgery on my lungs, my sister had heart failure.

Dream of failure at singing class in college forget

Dream of failure at singing class in college and forgot. Forgot reoccurred dream.

I woke up to a form of myself but i knew i wasnt myself i died but then im here and had a queen alien in my that this corporation took out of me. I was a clone later on i found a room of other clones that were failures that had been preserved but there was one that was living and it told me to kill it, it looked just like me it was struggling and then i set it on fire.

I have seen this dream for many times and really want to know what is mean my dream is my ex failure in collage, i always see that there is an exam and i dont know much about it??can u help me note>i failed in my collage for tow year but after that i could made it and finish the study