Not the OP, but after consulting for many years, I could make some educated guesses.
If you stop selling (networking, outreach, etc.) when you're fully utilized now, you will impair your ability to stay utilized later. If you have a project that you expect to wind down in 90 days, communicate that to prospects without pushing them away.
For example, we overestimate what a start time of "now" means in business. Sometimes, it's "today." Other times, "now" means "right after I get back from vacation, roughly 3 weeks from now" or "this quarter." Depending on the client, contracts + background check and other on boarding can take weeks of (unpaid) calendar time.
I've seen people turn away work slated for a start date of "soon" because they were on a project for another few weeks. A better move would have been to let the client know the existing project was winding down but let's get the paperwork started now for a quick start later.