something you may not know is that depression (what your post says you have been diagnosed with) does include dissociative symptoms now,which is probably why you have b een diagnosed depression rather than depersonalization\derealization disorders. sounds strange I know to be diagnosed this way. here in ameriica treatment providers are moving away from the multi axial (multiple diagnosis) process.

that said we cant tell you what to do that will help you. only your treatment providers can say that but what helps me with my depression disorder related dissociative problems is my medications and grounding tools my treatment providers have me doing. grounding tools are things that get you to focus on reconnecting with your body and surroundings..

examples....
for some people a grounding tool is smelling food items
for some people taking a walk is a great grounding tool
for others noticing and feeling things works

for me what works is taking my canoe out on the lake and rowing around, getting in touch with nature. camping, recently I have taken up ice skating in the park, hiking\walking the trails and the park also helps me, my children are a great tool too. you cant help but turn your thoughts from with in to focusing on children when they are engaged in playing and funny antics. I also love the smell of apples and cinnamon so thats a great grounding tool for me when I am feeling my dissociative symptoms.

I have found my dissociative symptoms goes away with physical activities and all that I just wrote and sometimes the cause is my medication (which my treatment providers now call medication side effects due to the new diagnostics) when its my meds causing the problems my treatment providers change the dosage and sometimes change the kind of medications I am on.