Am I just really insecure and clingy, or do I have anxiety or even depression?

I have some of the same symptoms as well- especially the problem with imagining the future, parents, relatives, and friends ping on. I know what you are going through, it is difficult and strange. I think it might be different personality disorders lumped together. I'm still trying to find answers for myself. I don't think drugs are the answer. Perhaps you should see a professional that could help you with what you are feeling. I hope everything turns out well.