HELP im in love with my bestfriend

Hey guys I need help!! I am in love with bestfriend and I have been for more than a year now. I thought the feelings would pass but they become stronger. I want to shoot my shot but i dont know how? I’m so inexperienced and she is the opposite 😩😩 Got any tips for me? I’m seeing her tomorrow for a movie night

*she is also gay❤️