How Important Are Financial Projections in a Business Proposal?

Hey, quick question! I’m putting together a business proposal, and I keep hearing that financial projections are a must. The problem is, I’m not exactly a numbers person, and I don’t want to mess this part up. Are these really a dealbreaker? Can I get away with just ballpark figures, or do they need to be super detailed? If anyone has tips for simplifying this part or knows of any good resources (or writing a business plan proposal that can help with it), please share. I’m low-key panicking over here!