Find something you enjoy doing. I know its easier said than done. I'm currently fighting a severe case of DP/DR and trying to fight off the irrational thoughts. When it comes to emotions, I too have that numbness. My girlfriend always told me i have no heart but now that she knows what people like us go through she understands. Emotions will develop my friend like any symptoms of this shitttt mental state, don't place too much focus on it ( again easier said than done). For me, my issue is feeling trapped in this dream state. Logically I know whats going on, but there's that person in my head that's convinced i am trapped and that leads me to freakkk the fuck out.
What i do know is ive had bad spurts of DP/DR and lived life with low DR. My life although I have my bad times, has been filled with fun memorable moments. Ive met great people, loved and laughed. Although DP was still there, so were other great feelings. Hang in there and in time you'll be ok.