I have no experience in novel writing so unfortunately I can't help you. However, there's plenty of writing advice floating around the internet these days and while you should take everything with a grain of salt as there are no universals and no fit-all tricks to writing, it still is very helpful to just browse around for tips.
Here are tags about beginnings on writing blogs I follow:
One &
Two. Feel free to check out their other tags as well.
Also
here is a listing of a bunch of writing websites.
Hope you can find some information there that could be useful. Best of luck with your writing!
Edit:
Stumbled on this lovely quote [
source ] and thought it sort of suited your situation:
“As I began writing prose, I kept telling myself to just put everything in that first draft. The first draft of the second section of the book was probably twice as long as the final version. So indulgence was the first thing. The other thing was to be patient, to not be anxious to get to the next moment, but instead to sink into the present scene and ask what the narrator is experiencing in this moment. Inherent to narrative is a kind of horizontal, forward movement in time that urges you to the next event. I wanted to resist that and instead create these lyrical moments of exploration. I do think it’s a poet’s way of writing fiction.”