Start somewhere in the south. The north is full of shit that will eat you every time you turn around. The south is safer, but you still need to watch out for ants and dragonflies. Run into a group of 4-6 as a newb and you'll be heading back to the respawn screen.
Hit tab to open the console, then type "r.bloomquality 0", "r.lightshafts 0", and (optional, but recommended for performance) "r.shadowquality 0". You'll probably want to use your GPU control panel at night to up the gamma as well. Or do like I do and use a program like Gamma Control to bind it to extra mouse buttons so you don't have to alt-tab out to change it.
Don't build anything but the absolute basics until you get to stone tier; thatch and wood are eaten in a matter of seconds by people with strong dinos. Stone requires grenades to break into and it will keep casual raiders away. Don't try to learn every engram either, you will run out of points. Important stuff is the various building components like foundations, ceilings, walls, doors, etc., tools, spear/pike, narcotics, bow/xbow, arrow/tranq arrow, armor (if solo), crafting stations like campfire, mortar and pestle, forge, smithy, and sleeping bag/bed.
Tame a level 4 or 8 trike as soon as you can make the saddle for it, or even earlier if you can find an experienced player to help you out (the material cost to them is completely trivial). Don't get attached to it, there's a good chance it will die overnight. Use it to farm lots of narco berries, and turn those into narcotics. At 2xp a piece they are just about the only 'fast' way to level that is left for people who can't just hop on a level 200+ spino do powerlevel themselves. To get a lot of spoiled meat quickly for the narcotics you can split stacks of 20 into singles by control-dragging the mouse.
Other early game animals: raptors are useful for travel and killing things, phiomias can't farm berries but are ok for hauling shit and can be garaged easier than a trike, parasaurs are worthless.
Beyond that it's just a matter of getting to the stone tier and then being able to make metal tools and a pike at level 25.
I'm on official server 65 (PVP).