Should I continue to grow or should I slow down?
Cash flow isn't profit. It's a matter of taking your present cash position and projecting it forward by estimating money going out (on costs of sales, expenses, purchasing assets, paying debts, etc.) and money coming back in (normally on sales, but don't forget that you have to allow for the time it takes customers to pay you.)
The only way to answer that question is to do the numbers. And then, watch the numbers and the flow, every month, at least once a month, to track whether you're on target.
If you don't have a plan, you can't even tell. But you should have a plan, and then you compare actual results to your planned results.
That turns planning into management and--congratulations, by the way--your question indicates you have some growth to manage.