Put it to the side for a bit. You are of a mindset now that you can't fix it and that will continue to frustrate you. Since you are a bit of a beginner, do another project that is a bit easier. Finishing it will start to rebuild your confidence. As you become more skilled, solutions to set aside projects often come to us. Or, if not a solution, another use for the squares - perhaps even splitting the squares into a couple different projects. Hang in there, we have all had projects that made us doubt our sanity!!!