Good luck in your Ph.D. program. I know I do not know you, however, I just passed this blog today online, and I thought I would add my input. I am just about finished with my first year, and I will say it has been a journey. Fortunately for me my family and friends are huge support. I will say this, one of my mentors told me to give up a lot of the pleasures of life and strictly devote my life to my PhD. Trust me, don’t fully give up on the pleasures of life, every now and then I will go out on the lake and go fishing on my boat, and have a beer.