Is a 2 hour walk too long?

I'm getting a job where I'll work the weekend shift. But they want me to train on the regular Monday to Friday shift first. I don't have a ride at the moment. We'll, my mother could use her car to take me there in the morning. And I can walk home or take an Uber. Let's say I want to save money and my mother doesn't give a ride for whatever reason.. would ealming 2 hours to and from work be a smart idea? I don't have a job and I won't be donating plasma forever.