who can translate this sentence into chinese for me?

问题描述:

who can translate this sentence into chinese for me?
"I am not good at riding them but one day if I hope I can be." especially the last part of the sentence is hard to understand,could you explain it for me?

if I hope I can be——如果我想(骑它们),我就能做到
整句:我不太会骑它们,但有一天我想做到,我就能做到.