Potty Training

Madi • Mama of 2 🌿 Artist. Nature. Salt Lake. Moonwoman 🌙
Hey mamas with toddlers-
When did you start potty training? My LO is 1 1/2 (she will be 2 in May) and I would love for her to be potty trained before I have my baby in July. Is it too early to start training her?
And tips would be super awesome 😬 
I've seen when moms put their kids backwards on the toilet with an erasable marker so they can draw on the toilet seat lid, does it work? 
Thank you!
xxx