any advice on trying for a baby 👶🏼? 😘❤

Decided I'm going to try for a baby 🍼 as I need a purpose in life. 
Any tips/tricks that you girls who've had children or whom are pregnant can give? 
I'm only 18, but I'm super excited as I'm so mature for my age & im financially comfortable & in a loving relationship 💖 
A baby 👶🏼 is all that's missing from my life now. 
Please no hate, I know I'm young but my maturity is super high for my age 😊 
Any advice would be really really appreciated. 
I'm giving up smoking too! Will that help? I also don't drink 🍹😌
SO EXCITED FOR MY JOURNEY INTO MOTHERHOOD TO BEGIN! 😃