Need some guidance

Hi mammas, I have a 3 y and one on the road, will be here in December. My 3 y is in a Montessori kindergarten (it’s set up at someone’s home and there are 11-12 kids ages 1-6) she’s doing so good learning how to count and the alphabet and to sing and to play and so on…I am seriously thinking on homeschooling my kids but have absolutely no idea where to begin from. Baby will stay there until she’s 5 or 6…and then I have to know exactly what I have to do and how. I want to be prepared when the times come, can you please share what are the first steps in informing myself what curriculum is best for us, how to choose it, how I can implement it and so on. Thank you!!!