PhD Student Advice - 15 Things I Wish I Knew Before Starting a PhD

A PhD isn’t mainly a test of how much research output someone can produce—it’s a structured assessment of whether a candidate can carry out independent research, and that reality shapes everything from the viva to how corrections work. In Europe, the thesis is read in detail by examiners before a viva voce, typically lasting from about one to three hours (with a short 10–15 minute presentation at the start). The panel usually includes an internal examiner from the candidate’s own university and an external examiner from another institution, with the candidate and supervisor having more say over the external appointment. Passing can come with minor corrections—often framed as small fixes like a few missing paragraphs or typos, sometimes amounting to roughly five pages—while major revisions can require a longer resubmission window (around six months). A full pass without corrections is described as extremely rare, and failing can still leave the candidate with a research master’s degree rather than a PhD.

Beyond the mechanics of assessment, the advice centers on psychological and practical survival: most PhD students feel inadequate at some point, and that feeling often doesn’t disappear even for accomplished academics. The work also comes with unavoidable delays—examples include major disruptions like a global pandemic—and there’s no reliable way to predict what will derail timelines. That uncertainty makes planning and documentation more important, not less. Keeping a research diary (tracking what was tried, what happened, and why) is presented as a major safeguard for later write-up, preventing the “blank page” problem when it’s time to reconstruct decisions from months or years earlier. For coding-heavy work, organizing code and files early reduces the time cost of revisiting old results.

The transcript also stresses that PhD trajectories vary wildly, so comparing oneself to other students is a trap. Early momentum can fade, and later momentum can return; others may experience the reverse. The goal is finishing, not matching someone else’s pace. Similarly, the PhD is described as more than scientific contribution: supervisors and research processes matter because the evaluation looks for the capacity to conduct research independently going forward. That means building a strong supervisor relationship and, where possible, a network of advisors so support exists if the primary relationship becomes strained.

Practical productivity advice runs alongside the emotional realism. People outside academia often misunderstand what a PhD job entails, assuming it’s flexible or not full-time, and they may repeatedly ask when it will end in ways that treat the timeline like a burden. Inside the PhD, taking time to plan projects—mapping action steps before starting—can prevent procrastination and reduce time spent staring at a screen without direction. Finally, learning how one learns is framed as a competitive advantage: for this candidate, writing and outlining thesis content before jumping into programming helps clarify what tasks are needed, boosts motivation, and avoids getting stuck on implementation without a clear structure. Overall, the message is that smooth progress comes less from having perfect conditions and more from knowing how assessment, uncertainty, documentation, and personal workflow actually work.