Wedding stress/help!!

My fiancé and I have started to plan our wedding and we had the date October 12, 2019 picked. When we told my mom, she questioned why it was sooner and why we are waiting that long. After discussing it with my fiancé, we agreed that April 6, 2019 was a good date. The wedding is coming out of our pockets. We told my mom and she seemed ok with it, thinking about options. A few ours later, she calling me saying no push it to 2020. I value my moms opinion but i feel like she is planning MY wedding and it’s stressful. I already broke down because of it and now we aren’t talking. She told me she’s out and she won’t have anything to do with any of the planning. After talking with my fiancé, I told him at this point I’d rather just go to city hall and not have a ceremony nothing and just have a witness. It’s always been my dream to go wedding dress shopping with my mom, have a nice reception and now it’s pretty much ruined. Anyone have any advice?! Thanks in advance!