I have a non-DID dissociation disorder as well, and it does feel lonely in many regards, since not only is it lesser known, but it seems to in many ways be easily overshadowed by DID. I read a book review right here on PC about a book on Dissociation Disorders in general which completely referred to it as a book solely about DID. I wasn't insulted; just surprised, and I did wonder how much of the hefty volume the reviewer had really read (or, if they had read it with DID-colored glasses

).
I had it pretty bad when I was younger, and then mostly had it under better control for a long time, but due to some unfortunate experiences I ran into more recently am finding myself to be in a relapse of proportions that are in some ways worse even than when I was a kid.
I don't know much about any prescribed coping techniques as I personally never had a therapist knowledgeable enough to participate in really helping me in that regard, but I try to ensure that as much as possible I have access to those aspects of life that I personally find truly engaging, and for me it means having a wide variety of stimuli available. Like, I always have my ipod with me, with high-charged playlists for waking my psyche the heck up, softer ones for smoothing out my mood when I need it, and everything in between. And when there's a particularly good amount of positive external stimuli happening, like being at a party where there's plenty of great people to talk to, I'm okay... but for most any other situation I have to be vigilant.
I struggle with it a lot though. It's so easy to dissociate, and when it happens it's so lightning quick.. and sadly none of the ways I've found that can prevent it are foolproof. But they help.
I also do a lot of what might look like self-soothing to anyone really noticing it, but it's actually me doing my best to stay present, by having an active sense of touch, like pressing and moving on certain points on my body (like for instance that hollowish area between the thumb and first finger). I got the idea from that EFT (emotional freedom technique) which is all about tapping, but for me I find pressure works better.
Everyone's different though... at least it always seems like everyone's different from me

I hope you find ways that work better for you soon!