Did I buy the right mountain bike?
(Presumption the OP is not over about 100kg, even then, I think my answer holds) Don't worry about the bike. It can handle a lot more than you can. For years I rode with no suspension and never broke a bike. I then got, what was then a great fork - 60mm travel, and did not break the bike. I usually pulled out at more than 1 meters air on those bikes.... usually...... I got older and wiser... now I ride XC and wheels rarely leave the ground, 100mm is more than enuf. 

Some would say with two foot jumps, you have got the wrong bike. You should have got a $3000 all mountain FS. But if all you could afford was the one you have, you got the right bike. A better bike would cost more, a FS in that price  bracket would be a BSO and I would say it was the wrong bike, you shoulda got a hard tail. A HT with more travel would have lower quality components...... 

So what should you do - learn to ride lightly - land softly. Bigger travel lets people who can't ride land 2 foot jumps and look OK doing it. You won't hide poor skills behind your bike, and you will not be forgiven if (when) you screw up a landing - it will make you a better rider.  

And just reiterating  -worry more about yourself than the bike.