Is there a point where cutting costs ceases to help?

I’ve cut everything I can think of...cheaper phone plans, cooking at home, no subscriptions, buying secondhand. But I still feel like I’m barely staying afloat, and one small emergency could break me. At this point, is it smarter to focus on finding extra income instead of cutting even more? And if you’ve been through this, what was the first real change that made things feel less overwhelming?