Struggling with PTSD flashbacks, need coping advice

how do you guys cope with PTSD flashbacks? I’m in the midst of one and it’s been one of the worst I’ve had by far. None of my usual coping mechanisms (exercise, meditation & breathing techniques, yoga, spending time outdoors, baking, reading, spending time with loved ones, etc.) are helping. I feel so depressed that I don’t want to get out of bed (and frankly going out in the world has been such a struggle for me). I’m forcing myself to, but it has been really difficult. The feelings of hopelessness, depression, anxiety and self-doubt are becoming too overwhelming for me to fight and I’m just so tired. If anyone has any ideas or suggestions please let me know, thank you🥰❤️