Everything going wrong with my trip

I was supposed to fly today to Ireland but our flights got moved because we weren’t going to make our connecting flight with our first flight getting delayed so much. Now we are flying tomorrow with aer lingus which makes me nervous because I’ve never flown with them before. And then I can’t get my boarding pass for some reason. I feel like everything is going wrong with my trip and it’s making me nervous for the worst and I don’t know how to rationalize with myself lol