I am a PhD student and try to work each and everything in detail. I am facing a problem right now as I am making lots of silly mistakes. In the first year, I made fewer mistakes. In the second year I made more silly mistakes and now in the middle of my PhD I am making lots of silly mistake during presentations and meetings with my supervisor. I think it is due to the fact that I am now reading and understanding things more deeply.
Question: How can I better avoid silly and annoying mistakes in my PhD? I am actually surprised to see that in the first year I use to make very less mistake although I use to read more material. Actually right now I don't read very much material I focus on one or theorem, but it appears to me that I am making more mistakes. I don't as these mistake's will be reduced with time or not. One example of a mistake is many times I assume that it is easy to verify but when it comes to verification many times I fails and I have very much difficulty in proving trivial statements ( may not be trivial for others ).