Literally, just watch Stonewall. He covered this shit months ago.
You start at either golems or toad, then clear 1 to 3 camps past that. Then you go back and buy the upgrade of the jung item. Then WAHLA! Jungling is easy once again.
People seriously need to stop complaining about new jungle and just learn how the new jungle routes work. I understand it is human nature to be opposed to change, but this is just getting ridiculous. Either adapt with the game or get left in the dust. Complaining will not get Riot to cancel their massive jungle overhaul (which they have worked hard on, and personally, I LOVE), so all people are doing when they complain is making themselves look like ovulating pussies.