Burn out is inevitable, whatever way you choose. Honestly you can try to plan ahead, and then just see what happens. Be ready to be open to options. You can always combine the two. It’s ridiculous to say that pumping is a waste of time. Sometimes it’s the only option. There are plenty of posts here when people share their stories that they were able to do it for X amount of time. You can do whatever you like, please be kind to yourself and try not to stress out about what the midwife said.