3 Month of Work now Waiting game for 1st Customer

So, I have built this SaaS for calling bot with CRM. I have started cold emailing campaign in targeted niche Social Media postings & All.

I am just waiting for 1st customer before I go advertising mode on Google & Meta.

Questions,

1. How much time does it take to get first customer?
2. What you guys do in the Waiting time?
3. Is it a good idea to start another project?

The reason of these question is I might not have enough patient in me to just wait and waste time. The world is fast enough to roll over you. Maybe I am just getting overwhelmed because last few months was too much work.

If you've any suggestion welcome.

Author: myousufr