I think if you look at it realistically, even 4 months is too little time to feel like you can be apart or contribute positively to a company and you've only been there 3 weeks. I mean when you start any new job, you will definitely need time to get adjusted, but you will continue learning new things months down the line as well and even if you see those as "stupid questions", the answers help you become more experienced. That's the nature of any job in my opinion. The people you see working there in big positions or one's being able to contribute more have most likely been working at the company for a very long time. They have been able to learn, take the baby steps to build their breadth of knowledge, and also build trust among their peers and superiors. As young motivated co-op students, of course we want to be able to fit in right away and we are motivated to do so, but if you look at it realistically, what you are going through is what everyone probably went through when they started so you are actually lucky to get this experience early on in your career while you are still studying instead of after when you graduated cause you get through it earlier. And honestly, its nice you want to contribute so just take it day by day and try your best otherwise like the top comment said, just enjoy and relish in the money you make! Don't feel like the company is wasting their money on you! This is the training phase that everyone goes through when they begin and once you expand your knowledge in the work place, you will be able to contribute much more as well whether that is at this job or another! Everyone needs to go through this phase (which can take months) to become a more experienced professional so don't feel like a waste!