MacBook Pro Freezed on startup screen

Hi,

I have a Mid 2012 Macbook Pro, wich is going trough some issues.

It has MacOS High Sierra 10.13.3, after the last week update it just wont boot up to the "user" screen.

Als it won't boot on safe mode, but it do boots on recovery mode, i've reinstalled the OS, but still won't work.

I've also used Disk Utility, and when running the first aid, it supposedly repairs the issue, but when i restart my MacBook Pro, it has the same issue.

The loading bar goes to the end but still it won't pass the loading screen.

I have some important documents that i need to recover also some photos and videos....

Is there any solution anyone can suggest other than restoring the entire Mac and losing everything?!