I'm in therapy right now and my therapist told me that after I make a plan for a situation I have to let it go, but I really have no idea how.  


For example, tomorrow (well in 2 hours because I actually haven't slept) I have to go to an OBGYN appointment.  My husband couldn't get off work, so I have to go alone.  This wouldn't be an issue except the doctor is in the city and I need to park in a parking garage.  I grew up in the country and have very little experience with city driving, so this makes me extremely nervous.

My plan is to leave 30 minutes earlier than I did last time, because sometimes it takes a while to find a spot.  Then, when I get my ticket to put it directly into my wallet because I accidently lost it last time.  And I have no idea what I'm going to do about the act of parking because I really struggle with those small spots.  


The plan is made, but the problem isn't solved.  I still have to deal with this alone in a few hours. I don't even think I'm being irrational.  The likelihood of me struggling to park is very high.  So, how do I just let this go?  I haven't slept all night because I'm so full of dread over this.  


I've only be in therapy for a couple of weeks and I plan to bring up to her how I'm still struggling with this, but I don't see her again until Monday.  I just wanted to get off my chest how frustrating it is to know I need to 'let it go', but have no idea how to achieve that.