@ryvb3 congratulations on finishing your Honours! I can definitely relate to feeling weird about not being a student anymore - especially seeing info about upcoming O-Week activities on Facebook! I actually went into uni today to meet with my supervisor and then have coffee with a friend on her break - it felt like I should have gone to the library afterwards to study 
@N1ghtW1ng ooh @Flit beat me to it with such a comprehensive list of awesome suggestions! I've personally used many of those strategies 
Developing a weekly schedule helped me to stay on track and made sure that I had enough time for study, breaks and rewards. Taking regular breaks to do something for yourself is also a great form of self care (even if it's just something like going away from your desk to make a cup of tea, or going for a short walk around campus).
I found that S.M.A.R.T. goals were super helpful for me, too. Sometimes it can feel like you have an overwhelming amount of work to do, which makes sitting down and starting to work feel almost impossible. Like @ryvb3 mentioned, setting small goals can help to break down what you need to do right now in this session. Breaking down a big task into a series of small steps can help in feeling like you are accomplishing things as you go!
Another thing to remember is that (like with any new skill or behaviour change) it's totally okay to have setbacks and times where you procrastinate a little bit more than you would like. The more we practice and get into the routine of studying, the easier it will seem also, sometimes it may take a bit of trial and error to find the strategies that work the best for you.
Universities quite often have resources and services to help students adjusting to study - you are definitely not alone in procrastinating! Is there a service that you could go to or someone that you could speak to for study tips/assignment help?
How is week 3 going for you so far?
What do you do to cope with the workload?
