I have just finished rewiring my house in CAT6. Working out cable routes to my TV room on the second floor was bit of a nightmare but I managed to pull a pair to an 8 port switch in the knee-wall space. I've bonded the pair together back to my 24 port switch in my comms cab, to give me a 2Gb link, which is more than enough for me (netflix, ps4, xbone, firestick, TV etc). The rest of the house is cabled back to the main comms cab in my garage. Cat 6 is pretty easy to work with, radius tolerance is pretty good (just don't bend it through right angles). Take your time, plan your routes and always install twice as much as you think you need. Try not to run data cables parallel to mains cable
I have 8 drops in my living room, 8 in my office, 2 in the master bed, 2 to the second floor, plus drops to all of my cctv, and 3 drops to my ubiquitis (one on each floor) and I have already used all of them. I will be running some more into the new kitchen extension and will run 2 into the summer house when the builders are digging the garden up.
My advice is invest in a set of cable testers (test every cable) and invest in a cable toner (no matter how well you mark them up, at least one gets away), buy a decent punch down tool (and practice with it before you use it in anger), buy a decent ratchet crimper, side cutters and a good straight bladed screwdriver (I like Wera). Also a set of cable rods is a very good idea, 5 or 6 rolls of electricians tape (lots of colours) and 3 or 4 sharpie pens, to write on cables. If you are going to crimp RJ45 Cat6 plugs onto cables, buy the 2 part plugs, they make life much easier.
Don't buy CCA cable its false economy. Don't try and do it on your own, its a miserable job and you are more likely to damage cables when pulling them (as they often snag) and always try and pull a pair at a time as you will mostly run pairs of drops (or multiples of) to each location. Buy a roll of 1mm or 1.5mm single core cable, its very good to use as a puller cable and stops you straining the Cat 6.
I have done about 10 domestic installs ranging from 10 to 120 drops and every one has had its own unique problems, but nothing that wasn't doable, with time and effort, you just have to think laterally sometimes. I am more than happy to provide advice to anyone who is thinking of doing the same.