Track my iphone

Hi guys, so something really sad happened to me.. I went to a trip this weekend and I forgot my iPhone in the city I went to (super far away) was looking around to get a replacement since I have coverage with Apple Store. Not sure why my iPhone got blocked and erased all of my data on that phone and I wanted to recover all of my photos from the trip. I had all of my information on the phone and not in the iCloud. Is there a way to recover my photos if they were permanently erased from the lost account? My friend has my phone and I have the iCloud and pw. I'm so sad and broken that all of my memories were erased and I know it's my fault for not doing a backup on the iPhone..