I've tried CBT. It takes a long time to work and a lot of engagement. I have been doing CBT since July. It is not easy. Its something you have to work on daily. Sometimes, my CBT thought balancing works amazingly. Sometimes, I can't get to it fast enough. My therapist wants me to keep a grounding technique in my "back pocket". He may mean literally, but I think he wants me to have a go to grounding technique. I love using affirmations and thought balancing to talk my out of thought distortions that anxiety created. For me personally, CBT works wonders. Its allowed me to see when its a rational thought and when its a thought distortion of PTSD. Beyond that, it has enabled me to be able to correct these thought distortions by myself. For daily incoming small stimulii, CBT is long-term sustainable for me personally.
I have not fully completed EMDR. I have started EMDR with my therapist, but we haven't gone so far into the treatment. I hope that EMDR helps me settle much larger past events rather than little stimuli.
I have not experimented with exposure therapy. I was recently exposed to a stimuli that has bothered me for a long time. It set me back because it transported me to a very bad state of mind for a week. After that, I saw large improvements in my reaction to such stimuli. I was able to settle a fear I have had for four years. It would be cool to be able to afford such treatment. I definitely think it will be most helpful, but also the most painful. With exposure, one has to relive a situation. I was raped four years ago. I was exposed to a stimuli recently by accident. For about a week, I literally relived my rape in my mind. The emotional flashback came for a week afterwards but overall it was a positive experience. Its was very effective but also very painful. I would recommend treading lightly if using exposure therapy.
I hope this helps.