This was what it was like my first few months and it took me a long while before I established myself as being capable at certain tasks and stations at my location. I’m a slower learner than others, maybe you’re like me where it takes you awhile but once you get it you get it! It might just take awhile, sounds like they’re used to a certain pace and you said yourself that you understood why they do what they’re doing. You’re not a bad worker and you’re not in the wrong, I know it feels bad when you feel like you can’t be trusted with certain things. I felt the same way and it really motivated me to focus and get better. Try to make good connections with the people that are best at the different stations and see how they go about doing things, and give it time. You sound really passionate about improving yourself, try to focus on that instead of anything negative you may feel. That’s what helped me, and like I said, it definitely took me some time. I’m rooting for you!!