Decide what the money must accomplish
A funding round needs an operating purpose, not only a desired amount.
Name the work that the money will enable. It may fund development, create capacity, or accelerate a process that already works. State what the next stage should establish. Distinguish necessary investment from spending that merely makes the present more comfortable.
Consider what you can achieve first with customers and existing means. A smaller step may produce stronger evidence or remove the need for an early round. Each equity round can reduce existing ownership. Avoiding an unnecessary round can preserve both ownership and time.
Also consider the cost of waiting. Some opportunities require resources before substantial revenue, and cash can run out during a funding process. Do not raise automatically because others do. Do not make avoidable desperation the trigger either.