Redo a tumble or polish

Hi rockbobby . I had the same issues starting out. Mine boiled down to crappy polish and trying to tumble rocks that weren't beginner rocks (moonstone). What kind of polish are you using? If it's only 1000 or 1200 grit it may not be high enough grit to really get the job done. I use 8000 grit (mesh, whatever it's called lol) that I get from the rockshed. You can get it elsewhere too, but I've never seen it on amazon. With my moonstone, it came out all bruised, frosty and not shiny at all. I realized I hadn't used enough ceramic media in the stages to help cushion the rolling rocks. About a year later I decided I wanted to try and put them through again. I started with a short 2-3 days in stage 1, then moved along to stage 2, 3 and polish. They were still cracked (nothing will fix that!) but I managed to get a decent polish on them and redeemed them somewhat. So, long story short - you most certainly can put your rocks back through the stages - I'd recommend at least going back to 120/220 grit, especially if they are already rounded nicely. What are you tumbling? If your rocks are softer, make sure you are adding in some kind of ceramic media to help cushion them. good luck! Would love to see pics of what you're working on.

**As an aside - softer rocks can be harder to polish than agates or jaspers so don't get discouraged if you are only seeing a matte/satin finish - sometimes that's all you get  

Welcome. There are plenty of folks willing and able to help you out!
Start with what rocknewb101 suggested and give us some more details on the rocks you are tumbling, type of tumbler and type of grit you are using.