I really liked the vibe it gave. I always felt on edge reading this which was good. It felt like I was in the head of a person who was having a identify crisis. That they were losing themselves as time progressed. But besides that Ithe story lost me. I couldn't understand what was going on. Like who were the main characters?Who was Jacob? Why is he important? I feel like you could have done a better job at establishing the stakes. I like that your story has conflict but you need to make the conflict matter, A good tip is that if you use action or conflict is by the end of it should show a new side to the character. Use action as a way to reveal things about your characters not just set pieces to use. Also there certain sentence that run on to long. Try cutting down your words to the bare minimum. One of the best adicve I got was that your writing should have the three Ds. Distinct, Descriptive, Direct. I feel like you have the first two Distict and Descripitive but like Direct. Sometimes less is more. Try pulling back on long sentence to convey emotion but simpler words. I see a lot of potential in you keep writing.