From looking up your bike, it's a pretty well-equipped machine. Your Rock Shox fork is going to help a lot in taking physical stresses off of your bike (and you).
Obstacles like curbs, rocks, logs, fallen branches, and roots will present varying levels of difficulty to you. Since your bike has 26" wheels, it'll be more difficult to ride over things than it would be with a 27.5" or 29" wheel. Small rocks, some fallen branches, and most roots probably won't hurt you to roll over them, but you'll want to hop curbs and larger rocks since your wheel won't be able to chew it up as easily. You'll pretty much always need to hop over logs (regardless of wheel size), so you'll want to practice shifting your weight over the rear wheel to help you get started with manuals and bunny hops.
Using a mountain bike on actual rough terrain is going to loosen your spokes over time. You (or your mechanic) will need to re-tension the spokes periodically to keep the wheels true. You'll also want to have your fork inspected regularly, and serviced once a year if you ride often.
The frame itself can probably handle several years of punishment, but with the vibrations and bumps that you'll be hitting out on the trail might start to loosen some of the bolts on your bike. Periodically check the pinch bolts on your stem as well as the bolts on the faceplate of the stem that grab the handlebars. It's common to see threadlock compounds on these bolts, but that's not always the case.
Your drivetrain will be punished a little differently. Traversing obstacles will cause your rear derailleur and chain to bounce, but the worst thing that can come of that is a dropped chain (and you could purchase a chain-keeper or switch to a 1x drivetrain with a narrow-wide chainring up front to prevent this). What you'll need to keep your eyes on back there is grit and dirt you pick up from the trails.
Keep some degreaser and lube (bicycle specific!) on hand at home and degrease your chain, cassette, and rear derailleur. Scrub them with a brush if necessary. Re-lube when you're done.
Keep your tires pumped up too. They'll lose a psi or two a day naturally. For a mountain bike, your pressure will probably be around 30 to 45 psi. Underinflated tires risk pinch flats and, while they provide extra traction, also generate excess friction, and will wear out faster. Overinflated tires will give you a harsh ride and might cause the tire to come unseated, resulting in a blowout.
As long as you stay on top of the maintenance, there's a good chance you'll get a decade of hard riding out of your bike (barring accidents anyway). Your mountain bike is designed to take a beating, but it'll suffer (and so will you!) if it goes unmaintained.
Enjoy the trail!