Have your day of hate (bear with me). Mentors will say you should select your research topic carefully. If you choose to study something you love, you might end up hating it. It happens. Should you find yourself having a serious wrestling match with your topic, wanting to scrap the whole thing, and wishing you had made a different choice, go with it. Throw yourself into the negative space until you exhaust all of the possible complaints. Then go for a walk, play a video game, or engage in some other activity you enjoy. Don’t think about or go back to your project until the next day. See how you feel when you come back to it, and plan to have a day of reconciliation with your work.