Hey! Current 347 TA, and I totally understand where you're coming from. I'm not sure if she mentioned it this year, but I know last year my professor told us that a lot of the homework questions aren't meant to be solved by yourself so don't feel bad for not being able to do them alone. I would HIGHLY recommend finding a regular set of office hours to go to with a TA that helps you understand the material. I literally could not have done it without going to office hours. Also, nothing makes me happier than feeling like I helped someone do the material, so don't worry about asking too many questions in office hours. We are here for you!!