A 1-Bit Register is basicly a D Latch. A D Latch is basicly an SR Latch. You should just look up the curcuit of a D Latch then you should be fine. If you want to make a read function, use a buffer so you can write to a bus with it.
sebastian already made a video but there are alternative chip design. for example you could make it by having a d-latch but the store is an and gate with inputs of store and a pulse of 1 tick connected by a clock singal
