Hi Mikayla
Had you created an album first? When you upload photo without an album for it to go into, it appears to upload and save but doesn't. If you have an album, it will likely automatically go there from what I can tell. If you have multiple albums, after the upload you can select which album you want it to go to.
If you did have an album, another thing to try is go to "add files" rather than "Photos". Hopefully this'll work.