Seeking Halal Provision: Struggling with Income After Leaving a Family Business Involving Alcohol

Assalamu Alaikum, I need some advice and a reminder about tawakkul. My husband's family runs a successful restaurant, but a large part of their earnings comes from alcohol. Early in our marriage, I asked him to leave that work, as it didn't feel right for our home. Alhamdulillah, he eventually stepped away, even though his brother wanted him as a partner in expanding the business. I kept reminding him that rizq is from Allah and that halal income would come our way. But now, over a year later, his income is much lower, while the restaurants are thriving. He sees their financial success and sometimes says, 'You told me I'd earn the same through halal, but it's not happening.' I know that barakah matters more than numbers, but I admit I sometimes have doubts too. How can we strengthen our faith and trust in Allah's plan during this test?