To form a good bond with your CNA's, make it known that you aren't afraid to get in, get your hands dirty, and help them. They will greatly appreciate that. I also found my CNA's work better with me when I keep them in the loop about their resident's condition. At the beginning of my shift I meet with my CNAs and quickly give them report on the residents, what we need to look out for, etc.
For the med pass (no matter what shift) you will need excellent time management skills. When you have 20+ residents to pass meds to, do treatments for, deal with falls and other things that come up, there is little to no room to waste any time. Make sure your med cart is stocked before you start. Over a period of time you will learn all of your resident's quirks, how they like to take their meds, when they want them, etc. Also, don't worry about speed when passing meds, that will come with time and experience. For now, focus on accuracy because nothing will put you behind more than making a med error and having to do all the paperwork that comes with that.
I always chart from 1800-1900 (I work swing shift and this is usually when I have down time). Never do your charting at the very end of the shift because you will forget important things to chart due to the fact that you will be rushing. At my facility we have to chart on new admits, resident's that have fallen (for 3 days), resident's that are on antibiotics, resident's that need skilled nursing care, and anything else that pops up on our alert charting list.
Assessing your residents is another issue. You will need to get really good at doing a very quick focused assessment because, as we are all aware, you will never finish if you do a full head-to-toe on everyone like how they teach in school. Try to focus your assessment on whatever the resident's main problems are. If they have COPD you will want to assess their lungs, get a pulse ox, ask about shortness of breath, assess their color, etc. If they have a g-tube you will always assess the bowel sounds, patency, etc. Over a period of time you will get really good at doing focused assessments based on what your resident's needs are.
When calling the doctor make sure you have all the information ready for any questions the doctor may have. Always have a new set of vitals if there is any change in condition, make sure you know the allergies, etc, etc. Nothing will make the doctor angrier than when you call them but you don't have all the information you need.
I'm a fairly new nurse as well, so I don't exactly have a lot of advice to give, but I certainly hope this helps.