First, understand that different things work for different people. Figure out what works for you. Here are some tips:
1. Schedule study time. Block it out on your calendar and keep it like an appointment.
2. If you get distracted by your phone, turn it off during your study periods. Life will still go on and you can catch up later.
3. Decide how you study best -- in your room, the coffee shop, the library, or ?? Do you do better in total silence or with your headphones on piping some kind of music? What is better for you: a traditional desk or table, your bed, or a comfy chair in the common area? Set up your environment for success.
4. How long can you study before you either get fidgety or daydream? Accept that and plan in SHORT breaks (5 minutes) where you stretch, get some fresh air. walk around, or whatever you need to get refocused.
5. Try good, old-fashioned flash cards to help you memorize anatomy or various terminology.
6. Try to find a couple of study-buddies with whom you can share info, check answers, and or get help.
7. Some people are just natural procrastinators. Put class work before pleasure. Build exercise, just relaxing, and social time. Your motivation is that you are in college so you can become a nurse. If you get into academic trouble due to laziness you will end your chances of achieving your goal.