Originally Posted by PaperPrincess

Great beginning. takes LOTS of practice. I would work on sample sandwiches first!
Normally a problem on the back means a tension problem with the needle, a problem on the front means tension issues with the bobbin. I think you need to tighten your tension to the needle. Also, curves are tricky and need to be done a bit slower. Even with great tension you can run into issues on curves if you go too fast.