"Re-invent the wheel", what the fuck does that even mean.
If you want to be as strong as an ox, you will lift and make it progressive and it will take years, you will be using mostly variations of multi joint exercises, some single and maybe one or two isolatory exercises barbells, dumbells and machines, including cables.
If you are not growing, ask yourself these question, in no order;
Am I working hard enough
am i eating enough
Am i getting enough sleep
Am I working out too much
Am I not working out enough
Is my workout too long
Is my workout too short
How much effort you place on a given workout is key.