Dreams like yours can be quite intense and often reflect deep emotions or experiences you're processing in your waking life. Here are some potential interpretations of the key elements in your dream:

1. Changing Environment: The parking lot, unfamiliar building, and simplistic, different home may symbolize feelings of uncertainty or disconnection in your life. You might be navigating changes or challenges that make you feel out of place or unsure of your identity.
2. Altered Relationships: Your parents not looking like themselves and the absence of divorce might suggest a desire for stability or a longing for a different family dynamic. This could reflect feelings about your current relationships or a wish for a more supportive environment.
3. Stalking and Safety: The feeling of being followed and watched could indicate anxiety or fear in your waking life. It may represent feelings of vulnerability, perhaps linked to personal insecurities or external pressures that make you feel unsafe or trapped.
4. Loss of Control: The broken door and inability to escape your home, despite your efforts, may symbolize a lack of control over your circumstances. You might be feeling overwhelmed by situations or emotions that seem to invade your personal space.
5. Escaping Through Extreme Measures: Ending the dream by taking your own life can signify a deep desire to escape from distressing situations or feelings. This could be a reflection of feeling cornered or hopeless about a particular aspect of your life.

Overall, this dream seems to highlight significant feelings of anxiety, disconnection, and a struggle with identity and safety. It might be beneficial to reflect on any current stressors in your life or consider speaking to someone who can help you process these feelings further. Remember that dreams can serve as a way for your subconscious to communicate what needs attention in your waking life.