Simplicity vs Complexity

Training is about results. You set goals, you work at improving certain qualities. More weight, more volume, more skill, whatever. 
Unfortunately the plan for doing this is not as straightforward as we would like. 

Do you use High-Volume, or Low. HIT or Periodisation? Do you go for High-Speed reps or Time Under Tension?
No doubt you have an opinion. But, is your opinion correct? 
Perhaps you swear by German Volume Training and have added slabs of muscle with it. 
Maybe you are a HIT jedi, and have the data to prove the superiority of your methods. 

Well, here is the kicker: You are wrong, but also right. What I‘ve learned from my journey in the Iron Game is this: Everybody is different, and Everybody changes.
Sure, today that program works for you, but in 5 years it might suck. And it might already suck for someone with a different anatomical makeup and genes. 
Successful training needs to address not only training experience, age, and interests. Other factors play a role. Response to volume, intensity, and frequency. Need for variation. Dietary needs. Rest requirements. Nervous system efficiency and resiliency. And all of these can change with time and training. 
With so many factors involved, how can anyone achieve anything? 
By paying attention.

A good time-honoured basic plan will get you started. Generally when you start out you'll make gains virtually by just looking at the bar. Spend time learning proper exercise form. 
At the same time you need to start taking note of the affect exercise has. How are you affected by the different exercises? Are some better for your response to training? The basics will get you going, build some good strength and skill in exercise form, and start to give you clues for future changes.

I‘m not advocating program-jumping, I‘m advocating applying results to future actions. It will take time to get it all sorted out and understand your individualised training response, so allow for that.
I'm the meantime, the basics will put you on the right road. It‘s hard to go wrong with the basics. 

And sometimes, they may be all you need to continue making progress.

It's not impossible that a basic plan won't work for you, but it would make you pretty special. 
I‘m betting that you're more like most people than you are different.
Besides, while the simple stuff is working, why complicate matters? There is plenty of time for the Reverse Periodised Conjugate Post-HIT German Combined Split later on...