Offered a new job

So I'm 23. I was a cabin crew back in 2019 but got laid off at 2020 due to covid. I now work as an account manager and I get paid $300 monthly. (It's the minimum wage in my country, I live somewhere in Asia) now, I have a friend offering me a job. Something similar but with a wider scope & they offer me a rate per hour which will double my salary now. I have an interview this coming Tuesday and I'm anxious I won't get in but my friend told me that her boss wanted to hire me so then the boss was the one who reached out to me. I'm just so scared that I might not live off to their expectation & in my current job, one employee just left a month ago. its my first time resigning if ever I get the job. Any tips? :( I'm so ancious