Broken hearted

Multiple issues:

1. Last week my ex-girlfriend (long-distance) told me that she's recently met someone. I am absolutely devastated. That relationship was really important to me and I feel like I've lost my best friend. In recent days I cut myself for the first time ever, I think as a kind of punishment for messing it up.

2. I have a tooth that's just chipped and is falling apart. Dental appointment next week. I'm really anxious about it and feel like I'm now physically disintegrating as well as emotionally. I really would appreciate prayer for my teeth because if this is a sign of things to come, that would decimate my already very low confidence.

3. I guess the most important — I just want to hear from God; and clearly. I have quite debilitating anxiety and depression. My anxiety is an existential anxiety, I think based on an increasingly despairing struggle to believe that God is watching over and supporting my life; that if He really is there whether He cares at all or just leaves me to fail over and over again. I've prayed thousands of times for Him to speak, heal, and somehow let me know that He loves me and that I'm not alone. And I'm as desperate as I've ever been.