It’s absolutely doable. You will need to be disciplined in your time management. Many athletes find that the structure their sport provides is helpful, especially when they are used to that. Without a sport, you have a lot of free time, and it’s also easy to fill it up with non-academic pursuits.
When you visit schools and meet with prospective teammates, ask about whether they have issues taking classes with labs, missing too many classes for travel, etc. It can vary by school, but most D3 schools are committed to balance.