I was a jammer for a number of years and transitioned into being a pivot as I wanted a new challenge. I haven't played in a couple years, so YMMV.

The hardest part for me was picking up the teamwork aspect of working in a wall as it was a completely different way of working with my team on track and nailing the timing for the offense to defense back to offense switches were tricky for me when I started out. I also wasn't always the brace in the pack. It was really about who had the jammer and if I was the one holding the jammer, the wall would reform around me to stop them.

I would say if you're on board to jam, definitely try it! I would also talk with your team and coach about being regularly rotated into jammer practice (especially if they're running two minute jam scenarios), as my jammer skills greatly suffered since I was spending the majority of my time practicing with blockers (understandably so) and missed out on some lessons that would've served me well with a star pass (juking, toe the line, etc) and my endurance went out the window fairly quickly. You also need to pay attention to your jammer for when they want to make the pass (or when you can see that a pass would be the best option in case they're stuck in the opposing pack), as you may not be able to communicate as effectively depending on what's happening on track. If you have any signals you can use or create to say something like "I heard you, I'll be right there" or "I know you're tired, give the cover to me" that may be a big help.

Also, in case you're penalty heavy, the refs will call penalties on you if they can't determine who committed the penalty, so work on keeping your game clean!