While Sam has taken important steps toward learning about safe bench press weightlifting by receiving instruction and watching a demonstration, the goal of "safely perform a bench press" requires more than just knowledge.
To fully meet his personal goal, Sam should also:
- Practice the technique with proper supervision or guidance to ensure he is using the correct form.
- Attempt the bench press with a manageable weight and possibly with a spotter for safety.
- Continuously monitor his technique and make adjustments as needed.
Therefore, based on the information provided, Sam has not fully met his goal of safely performing the bench press weightlifting yet. He still needs practical experience and possibly some real-time feedback to ensure safety.