I’m only new at this two but I transplanted mine 3 times first time was around the same as yours just don’t go disturbing the roots and you should be fine use a nice airy soil I’m in Canada I use promix hp it’s a really light soil drains really fast I don’t think I could over water it if I tried. I went from small green pots to bigger pots to 7 gallon pots . I never had and regrets giving them a bigger pot . If I had space in the house when I start them I would skip over the small pots and plant directly into the 7 gallon