Hi and welcome 😊. There is no set path, and your concerns are valid and very common. My first stop was to find a good therapist who had some experience dealing with gender issues. Alternatively try to find a local trans support group, go along and meet them, I'm sure they'll be welcoming and happy to answer some of your questions.
Ability to pass fully in your chosen gender can depend on many factors, but with effort and if desired (and budget allowing) some surgeries, most of these can be addressed.
Many have to face the awkward in-between phase, and again this can vary widely, but it is a reality you may have to accept if you chose to fully transition.