Hey caeli, I can relate to your experiment problem because I very often encounter the same. For me it is also mixed with fear of failure, fear of disappointing my boss and losing my job (which wouldn't happen) and then the self-doubt that I am not made for being a scientist. Often those feelings and thoughts run in cycles and I try to rationally "solve" the problem. But the problem are the thoughts themselves. The more you engage those thoughts, the more you go in cycles and the faster you wear out. Behind those thoughts and feelings sits a strong and self-confident caeli. What does it for me (and this is a relatively fresh realization) is to notice I am having those thoughts and then not engage them. The more I do this, the easier I am able to "come back" and focus on what I am doing and tackle the experiment on a more rational way, without the feelings of self-doubt obscuring my view. I hope I was able to help :)