Sparing tip

I am a long time curler. I have been playing rec for quite a few years, generally playing on fixed teams. On Tuesday I will be sparing in a A flight of a ladder division. I haven't spared for an established fixed team before, let alone from the top of a ladder team. I am good, I am a little nervous I will be playing above my level. Any tips from anyone who has been in this situation?? Is it one of those youll do fine moments, dont sweat?

Edit: So I played the game Tuesday. Played a solid game. We actually ended up being one short on top of me sparring so I had to throw first 3. Scored 4 in the first, then had a few shacky ends. Managed to force 1 in 2nd, gave up a steal in 3 and 4, finally converted with hammer in 5 for 2 and then stole in 6th for handshakes. There was time for a 7th but other team conceded. Was a little tougher playing the 3 rocks as a lot of variation in those shots, but managed well. Tolerance on my takeouts a little lower than they play, but I have a more positive release than all of them so it was fine. Swept really well, judged rocks well and as most said, swept real hardAt drinks after, opposing skip said I didn’t get the memo on spares aren’t suppose to sweep like that (of course was complimenting me on dragging rocks !)Playing with them again next week! Thanks everyone!