Hi Kioko,
First of all, I want to apologize for your comment going unanswered for so long. I hope my answering you now will still be helpful to you.
I'm not sure I fully understand your situation, but I will do the best I can to help however I can. It's perfectly fine to share your dreams, although as I've mentioned in replies to other comments, I am not a licensed dream analyst or mental health professional. If you are really worried about your dreams, and especially if they are still occurring, I strongly recommend talking to a therapist or counselor who can work directly with you to suss out the meaning of your dreams and address the underlying issues that may be driving them.
Personally, I do think it's important that you noted the connection between having these dreams and feeling like you "won't last long" and like you're "lazy." Now, I don't know if this is true for you, but in my experience laziness usually isn't just laziness. For me, it's usually a symptom of depression or anxiety; do you think this might be true for you, too? If this is the case, I imagine that your dreams might have some connection to that feeling--especially if you have any negative feelings, such as guilt or shame, about your procrastination. These types of feelings, in my experience, are prime nightmare fuel.
I don't think you are overreacting. It's natural to have nightmares if you're worried about something, and likewise, it's natural to worry if you have nightmares. It sounds to me like maybe you have a lot on your plate. At the risk of being repetitive, I want to recommend again that you find someone you can speak with directly about your concerns. Therapy would be ideal, but if that's not an option right now, maybe there is a support group you can join or a trusted friend or family member you could talk to?
Here are some resources if you'd like to take a look:
https://www.healthyplace.com/other-info/resources/mental-health-hotline-numbers-and-refer…
Whether or not you feel comfortable speaking to someone about this just yet, you may also want to look into some self-care strategies that may help alleviate your stress, help you sleep better, and maybe help you stop procrastinating, if that's a goal you have in mind. Mindfulness exercises, like yoga and meditation, can help you feel calmer, while journaling, making art, and/or exercising can give you an outlet for working through more difficult emotions.
I hope this helps. Feel free to reply or comment again if you have further questions or concerns. I will do my best to answer more promptly in the future.
Sincerely,
Kim