Ok so so far I was using the 35mm 1.8
I put the kit lens on and I'm unsure about focusing
So I move the slider to manual on the lens but how do I manually focus?
Before on the prime lens I would turn the thing on the lens which would focus it, but I can't do that on the kit lens because that zooms it.
Please advise.
All of the advice you have received here has been very valid, including the parts about reading the manual. It is there for a reason, be a man: play with camera, get frustrated then read manual. It's the way we all work.
The lenses are focused by rotating the ring at the very end of the lenses. The barrel part either controls zoom, or potentially aperture or just doesn't move.
However there is no reason to manually focus. ( well, there is sometimes but those special scenarios are miles away from where you are now). When people talk about shooting in manual they are talking about selecting aperture and shutter speed themselves, they aren't manually focusing. Your camera does have a range finder dot but it doesn't have any of the visual focusing aids that those cameras designed to be manually focused have.
Go back to auto modes:
Learn what aperture priority does and when to use it
Learn what shutter priority does and when to use it
Learn iso, aperture and shutter and how they interlink to govern exposure.
Learn the focus modes, how they work and which is best for which scenario
Learn the metering modes
That should get you going.