Really at a loss right now🤦🏼‍♀️😩

Today was my final straw and I’m just slowly losing every bit of sanity I have... first off, I am very lucky to be a high school student with a flexible hour job that gets off at 5 and is only open Monday through Friday, but even with this privilege I still feel so busy and overwhelmed. I feel like because I was able to get this lucky all my stress is dismissed and people look at me crazy when I rant or feel stressed because I should be so thankful and lucky for this opportunity. Today I had a meeting that meant so much to me and put in leave time a week ago to get off at 4:45 (I do runs for a law office and planned to leave early to the courts in order to have enough time to get back to the office and leave, but that didn’t happen because I was waiting on last minute documents... not a big deal but it kind of set me off on the wrong foot) I was having trouble getting a stamp of approval for this one document and was told I was in the wrong building. I was pretty upset that my coworker who gave me the document didn’t mention I could not get the approval stamp from this specific building, because I feel it is something she should know about because she deals with that stuff, where as I am 16 and don’t know anything about law documents and am never given information about what I am taking places. Anyways this ended up making me leave the office at 4:50 and I was pretty upset because I didn’t want to be late for my meeting today at 5. I feel so overwhelmed with school. My job is basically waiting on everyone to do what they need to do so I can drop things off and deliver them to the correct place, so after I am done with my normal office duties I will usually start on some homework. If someone comes in and asks me to lend them a hand I will immediately stop what I am doing and help them with what they asked. This one attorney, an older man (also not my boss), came into my office one day and told me to “copy documents and create a cover letter” no other info provided, and went back to a meeting. I asked all around the office about these documents I was supposed to copy and the cover letter I was supposed to write and no one knew anything about it, so I continued with my homework until he got out of his meeting and gave me the documents to copy. He then tells one of my coworkers I was “reading a book” and she brought it up to me. This is what really upset me. I feel like if someone, especially a grown man, sees me doing something wrong he should come to me and address it. Also my boss has came into my office multiple times while I was doing homework and never said anything to me about it, so I thought it was alright. At this point I feel like I need to take one day off a week to be able to catch up with all my school work. I take two college classes along with my two high school classes and I just feel like I have so much to do and not enough time. A lot of times I just sit at work and do nothing, so I feel like doing homework is more productive than wasting my time staring at a wall when I have nothing to do. The older man who isn’t my boss said that I should walk around the office and ask if anyone has anything for me to do instead of “reading a book” but personally I don’t think I should have to ask if someone has a job for me. My boss and three other coworkers of mine all come to me and ask for help if they have something for me to do, so I just don’t know what to do. I don’t know if I’m overreacting or what, but I just feel so stressed and at a complete loss on what to do.

If you made it this far, thank you to listening to my rant. I would prefer no rude comments, but this is the internet so I’m not expecting any different. I just don’t feel like people listen to me and take my feelings on this topic seriously because I’m young and I know I should be thankful that I’m not working late hours at fast food, but it’s hard to be thankful when you’re constantly stressed and just don’t know what to do or how to react.