Breastfeeding

Hi fellow mummies. Im not first time mummy but my last pregnancy was 14 to 15 years ago. And i vaguely remember the process of breastfeeding, or perhaps the pain of it. However, this time, i am determined to give full BF a try. Can you give my advices on what to mentally prepare myself? And secondly, even if i cannot latch, i still want to be able to give BM. Which affordable/ cost saving yet effective and efficient breast pump is reccomended?