Honestly that is kinda a rude thing for someone to say because I know throwing parties is quite a bit of work even if it's simple so to be dissing anyone for it is strange I think.
But if you're having fun and people are coming I feel like you're doing a great job already? Maybe the vibes are just not for her.
If you're not having fun then ask yourself what would make this party more fun for you. Activities are always good but the chosen activities will depend on what you like. If you are having fun people will have fun with you. Board games might be your thing or maybe it's kareoke. I personally want to host a crafts night of some kind. You could do an appetizer or cocktail contest. Or play twister.
Just be true to yourself and people will enjoy themselves. No party is going to be perfect for everybody but as long as yall make memories and talk to some friends it's going to be a success.
