[bzbz]

Ask your manager what they think of your performance, where you could grow, how you're doing compared to what they expected.

You'll likely be pleasantly surprised. Just like people with general insecurities frequently underestimate their likable attributes, it seems you're doing the same, but with your level of competence.

[twoquestions]

That's provided your manager is available for anything save criticism when things go wrong. Generally in my experience, personal growth is the sole responsibility of the employee. The manager is purely an executioner to find and fire the bottom 5-10 percent of people, depending on how the company's doing.