Pregnant and giving up bad habits

Hi ladies currently pregnant and wanting to know if anyone had any bad habits and had hard time quitting.

I love coffee and tea don’t drink soda/juice and I only would have like a cup of coffee or two a day the most

The other bad habit is thc I have my medical card but I want to do what’s safe and best for baby. Is it ok to still have alittle here and there or quick cold turkey.! 😩

Plz no rude comments new momma to be here thank u ladies