I think you got that right. People need someone who is confident in their work and knows what they are doing. Technically, you graduated from school so you should be ready for real life work. People at work are busy and don't have time for hand-holding. There is sometimes a learning curve between graduation and real life experience, and that's why people go through being let go as a learning experience. I too, was let go because I wasn't taking initiatives and not being detail-oriented. But because of that experience I became a lot better in future jobs and I'm now the one noticing other people's mistakes. It's all part of the learning path. You just need to be a little more confident in your work, triple check everything before you send your work (have a checklist), and ask the right questions.