The stress is over on moving to a new city, you're used to the university life now. The only difference is more work, more relaxed atmosphere, and more independence.
Second year means the workload increases so you tend to spend more time in the library, and less time going out and seeing friends. Create a strategy which ables you to balance out these two. For example, work in the library after lectures Monday to Friday for a few hours and then save the weekend for relaxing and hanging out with friends.
I'm not going to lie, I got to that point, a few times actually, where everything was a mess and my stress levels reached the roof. It happens unfortunately but staying organised can relieve this stress. There is nothing more satisfying than completing all your assignments a few days before the deadline.
Go for a walk, watch some TV, listen to some music. Take some time away from the work zone to get a change of scenery. It's not good for your health to stay sat down and focused on work without a break now and then.
Create a schedule of all your deadlines. This is what I did. Either buy a planner just to make note of your deadlines or just draw out a table to write your deadlines on for each month. Order them well, with your closest deadline first.
My university/course is incredibly well connected with work/internship/volunteering opportunities and post regular emails stating what they are, how to apply and who is well suited for them. Your ideal placement/job may pop up at some point so make sure you stay alert with your emails.
This is actually against what I say because I get too much work to have time for a job and also my course has 19 hours of lectures a week which gives me little time for socialising. But if you want some income for this year or final year, I suggest you get a job in second year. Having a job in final year will add to the amount of work you will already have and will most likely increase you stress levels. It won't hurt to have a Saturday job if it means doing a few hours of work for good money, but if you want a job, second year is the perfect time to get one.
TIP: Remember bills, bills, and more bills. When booking accommodation for second or third year, be sure to ask whether the cost per week includes ALL bills. A lot of agencies can catch you out with this and the rent ends up being £5/£10 more than you expected to pay. That doesn't sound a lot but once you add up the grand total of the whole year, you definitely will regret not asking in the first place.