Isn’t it FUN??? Congrats on a great first gig!
not to belabor the Squier thing, but the fact of the matter is that your Squier bass is a perfectly adequate bass for 99.999% of bassists, for 99.999% of gigs. Many really want to believe they need something more expensive - but they don’t. The list of players that would run into an issue trying to play to the best of their ability on a Squier that is set of properly is extremely short. Probably about as short as the list of players that are as good as Justin Chancellor.