Naturalisation Niedersachsen (Braunschweig)

Hi everyone, I am considering starting the naturalisation process, I have not yet written the Einbürgerungstest but have a date for July. Does it make sense to begin without this and would it affect my chances with the relevant authorities?

I live in Niedersachsen.

Also, I have a DSH-2 certificate, will this be accepted as proof of language proficiency?

Additional information: I have lived and worked here since 2018, one year of unemployment, hold a PR.