Build an assembler.
An assembler can craft some things (like wires, coils, and motors) more efficiently than you can, and it can craft some things that you are not able to craft.
Build a centrifuge.
A centrifuge will be needed to make process some resources and create components that will be needed for further progress.
Both machines require energy in the form of redstone flux (RF/FE), and can be upgraded using addons.