What is the most logical next event?

How to keep a turtle healthy
Provide an enclosure with adequate space.
Ten gallons per inch of your turtle is a general rule. 50 gallon (189.3 l) minimum for a baby turtle (younger than a year old) and 120 + for an adult.
Make sure that you have a general idea of the size your turtle will reach when full grown so you are not blindsided with keeping a turtle you cannot maintain. Decide on a land or aquatic turtle.