L.M.
Everything mentioned is what I did. My daughter tried at 18 months I think she went once and that was it. Around 2 we tried again and she was interested occasionally. We did the potty chair while mommy went. At 2 1/2 we went to diapers on at night and outings. She began to only want panties on. About a week of Panties during the day and she was fully trained night and day dry. She was having accidents once a week to now I don't remember the last one. Everykid learns differently and the best tool is patience. I don't believe in scolding for accidents, they happen. she even went on the floor a couple of times and I had to redirect.
Now our only issue with potty is it stalls bedtime nightly. but we are working on that too
Hope it helps and good luck