First paid photoshoot done. Need advice from photographers who started with almost nothing.

Hi everyone,
I’m a student and just finished my first paid photoshoot today. It was a graduation shoot for a friend, and thankfully they loved the photos.
The problem is that the entire session was stressful from a technical standpoint.
My current setup:
Canon EOS 1200D
Kit lens
Autofocus issues
Screen is barely usable
Constant worry about equipment reliability
Even my SD card had me nervous during the shoot

I managed to get decent results, but I don’t feel confident that I can consistently deliver the same quality to future paying clients. The biggest issue isn’t necessarily image quality it’s reliability. I don’t trust my gear enough.

I don’t have a portfolio yet, so this shoot will be the start of one. I’d appreciate honest advice, especially from anyone who built a photography side business while still a student.
Thanks in advance. 🙏📷