I would be the first in the line to contend that as a product manager in the making, you ought to grow a healthy skepticism to "best practices". Context is king and most often, there is always an exception to everything. However, the following should save you some heartburn in the long run.
- User Experience ≠ Wireframes
- User Experience > Interaction Design > Look and feel
- User = {customer, employee, business partner, developer,...}
- Scrum ⊆ Agile ⊆ Iterative Methods
- Agile ⇏ Speed
- Detailed Definition of Ready ⇒ Consistent Definition of Done
- Story Points ⇒ Estimation Metric
- Story Points ⇏ Performance Metric
- Burn Down ⇏ Progress
- Low Defects ⇏ High Product Quality
- Usability > UAT
- Product Quality > Validation + Verification
- Product Roadmap = {research, strategy, discovery, design, engineering, data, services, content, infrastructure, quality, legal, marketing, risk, regulatory, ...}
- Talking to users ≠ Research