errors everywhere

A really long day in school. Struggling with all the data for the thesis. Actually it is not that boring, it is things that I like doing, working with Excel and sorting things out. But it is frustrating when it does not work out in the end because you were sloppy in the beginning. Then you just have to look through all your data to find where you made a mistake. Hopefully you find it quickly. You try it out again, only to discover that the mistake you made turned out to be a few more. It is just to start over again and search for the errors. This is what plan for tomorrow is.