I focus less on making promises and more on pleasantly surprising others.
Making promises is an unnecessary stressor. Why make promises out loud when we can pleasantly surprise people as we become more consistent with our commitments? In addition, pleasantly surprising people helps accentuate your other qualities:
Actively listen to gather ideas on problems to solve or resources to secure for others.
Ease someone's workload by taking care of a task without asking.
Show up for someone who needs support as they work on a deadline.
What promise can you turn to a pleasant surprise?