Love the rocket, I'm interested in getting into hobby rocketry but I'm not sure where to start, so if you have anything to recommend, would be much appreciated!
Start by seeing what motors are available to buy in your area. Ideally start small, which would be A/B/C class motors. Sites that sell motors will also usually sell model rocket kits and vice versa. The Apogee Components RU-vid channel has plenty of good information on how to get started.
Nice vid, could you do a video with more details on the design? I find this really interesting because the low weight would make something like this way more feasible where I live.
The airframe, which is already very small (57mm outside diameter) is printed in vase mode, and so 0.4mm thick walls. For hardware like the TVC mount and chute ejection, I slowly increased the thickness of parts until they stop breaking, and went a little bit further for some safety margin.