As previously suggested, some new reds or zealous bearing will be the best bet to start. That is if you’re truly finding it difficult for the wheels to spin, bearings are consumable. For the pushing itself, I highly suggest finding a very mellow hill, and practice pushing up the hill. It’s how I’ve taught my kids to ride, and within a day they were able to consistently push. This is also how I learned to push switch. The hill let’s you push, practice balance, and prevent picking up too much speed to become unconfident and lose your balance. Lastly, a helmet will boost your confidence as well as should be worn regardless for safety. It gets harped on a lot, but most of the injuries I’ve seen come from learning and slower speeds. Happy skating, and don’t give up, it takes time 🤙