As someone who's had major writer's block for months on end, but has had plenty of ideas, here's some ways I reccommend to say bye bye to your writer's block
●Listen to a song that reminds you of your characters, sometimes having a theme can make the story come out much clearer, does this song correlate to a character, multiple? Does it relate to the plot? Great! Now you know how you want to write said attribute
●Read a book with a similar premise or similar characters to yours, so then you'll know how you want to write your characters, for me, I use Goosebumps and Hello Neighbor books to write believable main characters.
●Watch a movie you like that has a similar feel to your story, does any of the characters remind you of yours? Great! Take that as your inspiration and roll with it, mold it into your own story.