Should I take 5 classes in Spring & 2 in Summer or extend my final semester?

I’m in my first semester of my Teaching Credential I’m taking 4 classes and my first semester is almost over. I didn’t know what to expect at first entering this program but I almost quit the first week because of the workload. But I mapped out my classes and workload and somehow manage to keep up and get all As.

Now here is my dilemma:

My advisor told me I can start Spring 2025 and take 5 classes if I want to along with 2 during Summer in order to start my clinical practice in Fall 2025.

Or

I can take 4 classes and take 3 during summer and possibly extend my clinical practice until next spring 2026.

The main issues are that summer classes cost more and the workload is condensed in a shorter period. My advisor told me it is my choice and that it’s ok to extend my last semester if I need to work more to support my family. The other issue is that all of these classes have Professors I don’t know, I don’t know how much work they assign or their teaching style so it’s hard to gauge it I can handle 5 classes. I’m not sure what to do now.