Any tips on wedding planning with a fiancé that doesn’t have the energy to talk about it?

My partner and I got engaged just over a month ago, but I feel like I’m pulling teeth to get him to talk about the wedding. I value stopping and smelling the roses, having a gentle, balanced, relaxed approach to things, as does my partner; but we’re trying to get married before October and I’m feeling overwhelmed. I’ve brought this to my partner. He has a strained relationship with his family, but wants to get married in their backyard… we have a couple of other options we’re excited about, but when it comes to talking about it he gets zapped of energy, doesn’t wish to talk about it, making me feel ridiculous about being excited or bringing it up at all. The process has made me so sad and is shaking my confidence in our decision… this is really hard for me to admit. Has anyone found any workaround with a partner that doesn’t want to discuss planning the wedding? I imagined this to be a fun day we’re planning together and at the moment it feels like an expensive homework assignment that I’m trying to make other people happy about. Is there a hurdle I have to get over or any shortcuts that I can take? I think we both wish to elope but my partners family wants a full wedding. I strongly prefer going the all inclusive route to avoid too much energy being exerted on my end because it feels like a lot to figure out in 8 months.