I've been involved in many (failed) startups. I'm actually going through the same situation you're going through right now. We have some pilots but the money isn't raining from the heavens yet.
I definitely agree with the suggestions here to take some time off. Sometimes, especially when you've been living and breathing this stuff for 9 months, you need some time away to rejuvenate. I did that a few years ago with a trip to Nicaragua when I felt like I couldn't ship the product I was working on. After a week of not thinking about it we went on to shipping the product and moving our production line to China. The startup still failed in the end (for other wonderful reasons) but that introspection time is 110% worth it.
One thing that resonated with me recently was to keep your network up. If you fail you fail but you'll have a group of people willing to help you out if and when it happens. If you continue and then thrive you'll still have a great support network when the stress hits hard.
Also, remember sometimes the failures are great insights into what is working and what isn't working. If you have had this many potential clients at this point nothing says that there aren't more out there that you can surprise, delight and serve.
I definitely agree with the suggestions here to take some time off. Sometimes, especially when you've been living and breathing this stuff for 9 months, you need some time away to rejuvenate. I did that a few years ago with a trip to Nicaragua when I felt like I couldn't ship the product I was working on. After a week of not thinking about it we went on to shipping the product and moving our production line to China. The startup still failed in the end (for other wonderful reasons) but that introspection time is 110% worth it.
One thing that resonated with me recently was to keep your network up. If you fail you fail but you'll have a group of people willing to help you out if and when it happens. If you continue and then thrive you'll still have a great support network when the stress hits hard.
A friend said it well on a recent episode of the $100 MBA Podcast. https://100mba.net/mba973/
Also, remember sometimes the failures are great insights into what is working and what isn't working. If you have had this many potential clients at this point nothing says that there aren't more out there that you can surprise, delight and serve.
Best of luck.