You don't have a thing to be worried about. What you're thinking right now sounds perfectly normal. I sometimes still have thoughts of wanting to wake up cisgender, or thinking that I should've never figured out that I'm trans, and at this point I'm quite far in to my social transition. My advice here is to not let these thoughts get to you. You're being honest and true to yourself, and that in itself is amazing.
Also, don't worry about still being attracted to girls. That doesn't make you any less of a girl yourself; that's just what you're attracted to. If HRT happens to change that preference, so be it. Love is love.
Some advice for picking out a name: Baby name sites. They're everywhere. Look through them and see if you find any that you like. Don't be afraid to try them out online, or with close friends if you're out to them. And if you decide you want a different name down the road, that's perfectly fine! A lot of people experiment with different names before they find the one they want. Some people even go by multiple names.
Don't worry about not being able to transition quickly right now. Everyone wants to, but transitioning slowly gives you time to settle in with and be comfortable with your new life. Take your time, you'll be fine.
If you have any more questions or concerns, this is a community full of supportive people who will help you in any way they can, myself included. We're always here if you need anything.
Have a lovely day, and I hope everything works out okay!
~Axel