Hi Kaitlyn and welcome. About the only thing you can do wrong to a cactus is to overwater it. That one does look really healthy with all the new growth, but if you're worried let it dry out really well before you give it any more water. Also be sure it's getting enough light - don't forget the sun has moved up to nearly overhead at this time of year and sometimes that means it suddenly doesn't get into a window that's normally sunny.
If all else fails, you should always think about where these plants grow in nature. In the desert they go weeks and weeks, sometimes months without water. They store the water in the body of the plant. Then in the "rainy season" they can get heavy rain for days and days. As long as your pot drains as well as the gritty dirt in the desert does, your plant should be able to handle either scenario.
