Recognize what field you are entering. Talk to other product managers to see what their day jobs are like. Ask yourself if this is something you want to do. Integrate email list information from social media and blog posts into articles. Readers are naturally expected to have some experience with product managers (and they don't). I have a simple principle - "the fewer words you use, the greater the range of interpretation" .
Know what you're getting into... Knowing that the charisma of leading a team and influencing change doesn't come from day one, it's going to be an uphill battle full of trials.
2. Control ability
If you've been familiar with product functions for a year or two, learn to control the following:
1) Time
There is no currency more important than time. As a product manager, your time is of the essence. You "spend" your time wisely. The only way you can control time is through rules. The clutter of your day can be effectively managed by setting non-negotiable pause periods to regroup and plan things during this time.
Don't be afraid of uncertainty, if a "wrench" is thrown into your "gear", it is a priority to remove the "wrench" before entering the ensuing chaos.
How do you control your time? It's simple, plan your day. Arrive at work an hour early and plan the key actions/tasks you want to compete in. Set yourself up for a one-person meeting.
Learn to prioritize things, distinguish between urgent and important tasks, and prevent small things from happening.
Be smart about time management. It's okay if your plans fail, not all of your plans will succeed after all, but constant planning will eventually get you there. Know when to relinquish control and when to hold on tight.
2) Action
The importance of this comes right after time management. Take control of your actions and don't let anyone force you to make decisions. Strike a balance between urgency and importance. Remember every action you take and remember to reflect on it afterwards.
3) Learning
Keep asking yourself - did I learn anything new today? If not, go learn something new. Often, in a fast-paced product, you learn something...however, in some cases, you might not actually be learning.
There is a type of learning called excessive or pointless learning. As a product manager, you don't need to know how microservices are built, or how data is stored in databases. But you do need to know what the data reveal. Take control of your learning.
Then, keep learning.