Hello Everyone

My first post...rather nervous! but here goes !
I wanted to reach out to all you lovely people and get some advice about my upcoming transition.
I am 24 now (Sometimes I feel like I have left it to late but hey ho !) I have been struggling with my gender since childhood, even more so for the last 6/7 years where I have been very gender neutral and wearing girls clothes in private.
For the last year, I have been terrified of making the big step and booking an appointment with the doctor. I have finally made this step and go next Monday!
I have managed to save up a decent amount of money (around £40K) and I want to use this to help me transition.
I know the first step is to speak to a professional but I wondered what happens next ? How quick is it before i can get hormones.... do you have to live full time as a girl before I can get them? I have so many questions !
Would love to hear some initial advice or information x