My advise is remember where you are working. Remember your most important tool and job for the day. Unlike med-surg, it's not hooking up or hanging IV's, checking Foley's or PICC lines, it's listening to your patient. It's sitting out in the mileu and talking to your patients, make them feel normal, human, like they matter. I love football, it's a great conversation starter, and it gets patients talking and they don't feel so bored all of the time. It gets the patients interacting with staff and other patients, it works on their people skills, and if things even begin to get out of hang, you can see where their coping skills are at before you stop the conversation. Our patients are here b/c of their mind, so they need your time, not just your medication.
Don't be afraid. I work in a very acute facility. We luckily don't use restraints very often, maybe 2 or 3 times since I started in Feb. We call a lot of "codes" needing assistance. I am a women, work on the men's unit, and with our panic button, staff will come running. In all instances I have seen of a man trying to overpower a female staff member or intimidate her, even the patients step in to help. I feel 100% safer working on the men's unit than the females.
A patient can flip and attack you with no warning. A patient today attacked a co-worker with absolutely no warning, she was walking by and he just grabbed her hair and threw her down and bit her in the head, it was over within 3 seconds, but that's all it takes. Never think a patient is your friend or "know" they would never do anything to you.