For me I have been daydreaming for as long as I can remember since I was a child. Now at 23 I tend to dissociate a lot especially when I’m stressed but even in normal day-to-day life I feel like I’m in a dream. This affects pretty much everything in my life.
Anytime I’m alone I’m daydreaming and can vividly picture scenarios and act them out as though they’re real and I’m physically there. 
It is only when I’m busy (like occupied with physical tasks) or with friends that I am more grounded and present. 

There are times when I look at myself in the mirror and can’t believe I’m actually the person looking back at me. Like I’m just living inside my body as if it’s a vessel. The person is just like a stranger to me, it’s the weirdest feeling. But I know it’s me.

I’m not diagnosed and I’m only going off what I’m experiencing and my knowledge in the field (I’m a therapist myself). I thought for a few years i could have ADHD but then there are other aspects involved too. I’m not trying to self-diagnose but I’m looking for some help in how this can be managed whilst getting a diagnosis professionally? As I’m in uk it can take months or even years in some cases to get a diagnosis unfortunately :(

Can anyone share their experiences? How do you manage this?