This is my first build, done a few weeks ago: https://rotorbuilds.com/build/19113

What would you guys suggest I work on upgrading as they break/as I become a better pilot? Will anything in that list hold me back?
At this point I know enough to figure out what's good enough for my first build, but don't know what stuff I should be upgrading to, what brands are good, or what components will make for a better flying experience.

Thanks!

I think you have a pretty decent build. Upgrade as this GS breaks.

the upgrade will be try out diffrent sort of builds, motors, props... find some benefits for your flystyle.
try diffrent styles of flying... or is there something missing?

i personaly like ultralight nimble builds, others like heavy-powertanks...
you can try hv-lipos, to smell the direction of 5s, 6s... nothing will make a better pilot only the progress and fun could be increased.
start with comparison of diffrent props, diffrent prop-pitches; from a low ptiched prop like 5040 - to a high 5055. try skinny blades, lightweight props..
as an example some diffrent sorts of props would be: an azure 5050 biblade, a dalprop lightweight t5051c, gemfan skinnybalde 5146,6 , gemfan hulky heavy big propsurface 5055...