Plan to quit my job without notice and could use some encouragement.

Been with this job for quite a few months but I’ve dealt with so much unwarranted aggression and bullying that my mental health constantly takes a nose dive due to mental illnesses. I plan to leave them at a crucial time so part of me feels bad. I know I don’t owe them anything but some guilt remains and I’d appreciate any and all support you all could offer. Thanks in advance.