First, decide what's your KPI goal for this week. For example, 10 more paying customers by next week. Make sure this ladders up to any longer term goals that you have. In addition to identifying the right KPIs, you also need to identify your biggest bottleneck or problem in moving your top KPI.
YC Visiting Group Partner Divya Bhat talks about how to set your KPIs (key metrics) and how to prioritize your time. This talk helps founders launch faster and set goals in order to make real progress.
Apply to Y Combinator: https://yc.link/SUS-apply
Work at a Startup: https://yc.link/SUS-jobs