Is it really worth it?

The credential program is so darn arduous. I'm investing years into education in order to get paid little, deal with bureaucrats, test my students to death, and be told that no matter what I do, I need to do better. Seriously, is it worth it? In a year or so we are going to start trying to have a family, so when I get my credential I won't even use it. When I do go back to teaching, will things have changed so much that I'm obsolete, especially since I won't have had much teaching experience prior to having kids? I'm tired, I'm overwhelmed, I don't feel like the professors are being realistic with their work loads, and I always feel like I'm in a perpetual state of giving up. I understand the importance of making sure that teachers are qualified, but I feel like the program is a lot of pressure. I want to get everything I can out of it, but I don't feel like I am when all I'm worried about it completing an assignment rather than getting the most out of it. It's ironic that we are taught that quality versus quantity is what counts for our students, but we are expected to do quality in large quantities.