iPhone 8 stuck at Apple Logo after the space went low

My iPhone stuck at Apple Logo after I restart my Phone. Before that its showed that I am running low on memory and my Apps were un-responsive. I cleared some space to make 63.8 out of total 64 GB. However, the apps were still unresponsive. So, I have restarted it and its stuck at Apple Logs since then.

I have connected to iTunes but itss not allowing me to update. I know restore can work but will wipe all my data. I don't want to lose my data!! Please suggest. Again, its imperative for me that I DON'T LOSE MY DATA