macbook mid 2010 white 13.3" running high sierra has half chance to boot
What you don't say is how the system behaved before you installed/reinstalled High Sierra. That would be vital information along with what was on it before.

That said there could be a lot of things going on.


Damaged/corrupted OS install
Damaged/corrupted HDD
Other hardware problem including failing RAM or other failing component


What you are going to need to do if you want further help is to fill in the blanks by editing your original post (don't add a comment edit the original) so we can better be able to assist you.