If you're experiencing financial constraints while scaling up your business, there are several strategies you can adopt. First, it's important to be realistic and set achievable goals. Secondly, assess and streamline costs - identify areas in which you can reduce spending without sacrificing quality or customer experience. Thirdly, look for ways to generate additional revenue streams through creative marketing and promotions. Finally, consider seeking external funding through venture capital investments or angel investors if needed. With the right strategies in place, you can overcome financial constraints and scale up your business!