I'm going to enter my second year in my PhD after two months from now. I start to think that I can write some chapters from now instead of waiting until the fourth year. This would help me to finish my study early is that possible or at least avoid the stress of writing in my fourth year.
However, most of my friends who are in the third and fourth year suggest not to do that because it is going to waste my time and instead I need to focus more on the literature review and prepare for the field work.
Need advice about this from students who go through this.