Wǒ de bókè méi shénme rén kàn, wǒ jiù dàng zìyú-zìlè le.
Hardly anyone reads my blog, so I just treat it as something I do for fun.
Tips
usage
Often modest or self-mocking: calling a hobby 自娱自乐 makes no claim to skill or to an audience. Built like 自言自语 "to talk to oneself" and 自作自受 "to reap what one sows".