I dont know anything about assembly... I just find it to be weird that i im going to learn this with datasheets and tutorials etc. As said, im used to learning via a book.
I learn best with examples and writing programs myself. I think the PIC assembly language is not the best to start learning assembly, because the small instruction set makes it more difficult. I can program in PIC assembler, but it is still always twisting a little bit my brain when I have to program "skip next instruction when some bit is set", and then the next instruction is the actual branch, or the strange things I have to do to implement a simple lookup table (and be careful with page boundaries if you try this), which is one instruction with other assembler instruction sets, like 6502. Bank-switching was not a problem for me, because I just select the bank all the time before I access something when in doubt.
That said, you should install the MPLAB-X IDE. It is free and has an integrated simulator, which is very helpful, because you can single-step through your assembler program and see for each instruction how it changes registers, and you can even create a virtual "oscilloscope", where you can see the waveform of a GPIO pin which you control from your program, all without hardware. Then you can start with a tutorial program and see how this works. Then enhance the tutorial program and soon you know PIC assembly.
But of course, would be best if you try it on real hardware. Buy a PICKit3 programmer (there are cheap clones on eBay) and a few PIC16F883, and a solderless breadboard if you don't have already one, and things you want to do with it, like LEDs (with resistors in series), buttons and sensors. Then think of a simple project, for example a button press should be delayed and light an LED (as I did
here), and try to program it yourself. This is the best way to get good at programming: not by reading books, but by programming. But to read an introduction book first, what assembly is at all and how a CPU works, might be helpful, if you don't know this already.