There are many different kinds of therapy and there are books (including workbooks) out there on them that you could try if you can't afford a therapist right now. I saw a PTSD specialist psychologist for awhile and still sometimes talk with her. She did EMDR on me, like some mentioned. We did other kinds of therapy, too, and I find Dialectical Behavior Therapy the most useful, and I have had to do that all on my own. I can't afford a DBT program.

Medications also really help me, but maybe you don't need them, like you said. I'm also bipolar and get pretty crazy off my medication.