I Don’t Like Holiday Parties!

I have friends and an active social life but I dread attending parties and making small talk especially with people that I don’t know or rarely see. Should I “push through” and attend to support my friends who invite me or listen to my own feelings and spend time in way that I’d prefer…basically…not sure is this is a “get out of your comfort zone” issue because I’m more of an introvert or a quit “people pleasing issue” and just say no! Second part…what is a good excuse for not attending?