Worried new job might be a bad fit? Just jitters?

So I just started a new position, heavy heavy leadership role. I have ALOT of experience, have seen my fair share of challenges and i believe I’m well equipped for the position. With that being said, my first day was a whirlwind. I could barely grasp what was up and down in this 500,000 square foot building. Well my boss is just throwing me into the deepens because he’s busy. I walk in today and he wants to me to be in on this huge refresh of the building. Well I’m also managing events. A guy was supposed to be here at 8am for a walk through, but that’s all the info I had. Was told I need to meet him and walk him through the space. I thought for an event that we are setting for, well after talking to the guy, and some of our staff (because boss is in a meeting) I realize he’s here for the construction project that’s going on. Not the event this is also going on. It makes me look so stupid. I took him to the wrong space. Wasn’t a big deal on his end by I can hear staff snickering (by the way who some of them were passed over for promotion in leiu of my hiring). NOW they’ve pulled in one of those staff members to do the walk through, not me.. and the whole thing just feels weird. Like I was supposed to be somewhere that I wasn’t type thing and now that staff member is stepping in because I wasn’t there.. but the truth is, it’s my 2nd day.. and I’m still trying to find how to even get to the bathroom let alone complete a site survey. I’m a really strong performer but I’m starting to get freaked out should I stay? I’m worried these people don’t WANT me to succeed.. should I just persevere ? Is it just normal jitters ?