Feeling Stuck and Need Advice

Salam everyone. I’m a 29-year-old woman, having a stable career, but living at home with my parents. I’m reaching a breaking point and feel completely alone in this situation. I would be so grateful for any advice or to hear from anyone who has been through something similar. I love and respect my parents deeply, especially my mother, who has sacrificed a lot for me. However, her protectiveness has become overwhelming. The biggest conflict right now is about a potential marriage partner. I (29) have been speaking with a man (30) a while. We both like each other, are serious, have careers, and want to move forward in a halal manner in future. My mother, however, is adamantly opposed. Her own marriage has been unhappy for 33 years, and she projects her fears and experience onto me. She believes I am naïve and make hasty decisions. The specific issue is that she performed Istikharah regarding this man. Afterward, she had a bad dream, which she has interpreted as a divine sign that I will not have security with him. She takes this as a definitive answer from Allah and has told me to "get over him." She, along with my father, refuses to even meet him in person (as per my suggestion) to form a personal judgment based on evidence, (in addition to her Istikharah) sticking solely to her dream interpretation. I personally feel this is deeply unfair. I understand that dreams ALSO can be influenced by one's own fears and emotions. Me and her are very different in terms of personality. I have a positive outlook, seeing some potential in him and willing to give him a chance. Humans are not perfect after all. But my parent’s perspective says otherwise. I’m the one who will get married here so I’m very disappointed of the way they handle things especially when it comes to marriage (I know them very well that marriage is the most difficult topic to discuss and agreeing with them). How can I respectfully move past this impasse? Has anyone successfully navigated a similar situation with overprotective parents regarding marriage? What practical steps did you take? JazakAllah Khair for reading and for any guidance you can offer. Please make du'a for me.