The directory should belong to the user it is for, and generally the group "users". So start with:
sudo chmod khirst:users /home/khirst
A sane default for permissions would be 755. This gives the user full control, and everyone else read/execute. You may want to use 700 though, which will give only the owner access to the directory. You definitely don't want to be doing 777 for home directories.
Also, check that the files inside
of /home/khirst have the proper permissions and ownership, not just the base directory. If the individual files are set improperly, then you can use the "-R" switch on both chmod and chown to make them work recursively, or in other words, change all of the files that are contained within the directory they are pointed to.