Will I get an interpreter if I don’t speak English?
It depends. If you are applying for asylum without being in removal proceedings (under the affirmative asylum process), you will have to bring your own interpreter to the asylum interview. The government will not provide one for you. If you have a lawyer or advocate helping you apply, this is something s/he can hopefully help to arrange.
If you are requesting asylum as a defense to removal proceedings (under the defensive asylum process), the government will provide an interpreter for you at the asylum hearing and in all court proceedings.*
* See USCIS website