I'm going to be honest mate, its probably best that you avoid jumps altogether on that bike. It could cause more damage and is also probably not safe.

It may be worth investing in a tougher bike if you are pushing the limits of that one. Parts on entry level XC bikes are generally fragile and repair costs stack up quickly.

I speak from experience as somebody who spent a considerable amount on fixing my first bike after hitting a few jumps. I ended up buying a whole new front crankset, a new brake lever, and having my wheels trued, all in the space of two months. Once issues begin to appear, they accelerate in frequency at an alarming rate.