I think they are more skilled than you.
Early in the tournament it is easy to chip up because of the bad players. Some of these bad players even accumulate a large amount of chips by being "lucky", only to donate them to better players as the tournament progresses.
There is certainly a lot of skill in finishing a tournament. The blinds are a large portion of your stack, the antes chew away at you, and you can't just wait for premium hands.
This is where the "play the person, not the cards", comes into play. You need to learn to be more creative with your game rather than just waiting for cards. Doing this will keep your stack growing rather than stagnant and dwindling. This will allow your stack to take a bad beat or bad call rather than busing out.
Keep adding to your tool box....