How do people deal with anxiety about travelling alone?  

I’m 31 and have never taken a solo trip where I’ve had to organise travel, accommodation and taxis to and from a venue etc by myself before as I’ve always leaned on my friends to do this but I’m travelling from Scotland to England a week on Saturday to stay over night for an event and although it’s only 4 hours away I am SO stressed and anxious about it that I want to cry.  I keep thinking I’ll get lost or not be able to get taxis and the rational side of me knows deep down that I will hopefully figure it out but I just can’t calm myself down.