Well, one thing to make sure you do is delineate your work from the rest of the life. So, Monday to Friday, 9 AM to 5 PM (or whatever the hours), you're in work mode, but as soon as the clock strikes 5, you turn off everything work-related, and you should not be considered reachable, barring any emergencies.
If that doesn't work for your co-workers, you fundamentally have an unsustainable company, which is no more your fault than theirs.
When clients and your work make a claim for your personal time, you need to put a stake in the ground - directly or indirectly by not responding outside working hours.
It also sounds like you may have a problem with your planning and workflow, if you've got e-mails and texts coming your way like a hailstorm. Since you're a founder, you're fortunately in a position to dictate how communication and project management works. Because no one deserves a flurry of e-mails and texts.
If that doesn't work for your co-workers, you fundamentally have an unsustainable company, which is no more your fault than theirs.
When clients and your work make a claim for your personal time, you need to put a stake in the ground - directly or indirectly by not responding outside working hours.
It also sounds like you may have a problem with your planning and workflow, if you've got e-mails and texts coming your way like a hailstorm. Since you're a founder, you're fortunately in a position to dictate how communication and project management works. Because no one deserves a flurry of e-mails and texts.