How do you scale past $1 Million in revenue? What are some common bottle necks to avoid?

I am a painting contractor. We might potentially surpass $1 Million this year for the first time. We have almost done it twice. The first time the business really struggled. Learned a lot from that in 2022. Spent the last 3 years implementing everything I learned and now it seems we might finally do it. But I feel like I could do better with understanding some things to really go to the next level.