Breast Pump

Hi mummies! I’m a first time mom at 29 weeks now. I plan to breastfeed my baby when he’s born. I also bought a breastpump from baby express sg (based on good reviews and recommendations). However, I’ve never breastfed / breastpump before hence I don’t know how to use it. Scared that when the time comes to breastpump, I don’t know how to use it. There’s the option for bionic mode, suction level, frequency etc. What’s all that? Anybody care to help? 😅