Before I was also very confused about what to do what split to follow how much time to give for workout, after years of mistake.
I created my own workout routines this is how you can create it without over complicating it.

First step
understand your daily schedule wether your work is having a heavy work Day ,office time or college days
After understanding your routine make a diet according to your work schedule and daily calories intake
keep your gole consistent weather you are ‘Loosing or Gaming weights’
second step
Make sure that you take 8 hours of sleep daily .
For workout you can take 5 day split 2 days rest
Chosing your workouts
As I told earlier it totaly depends on you which split to take according to your daily routines eg :
- If you are going to college you have a lot of free time so you can choose double muscle workout split
- If you are going to office to office and you have a moderate amount of time then you can try bro split
- If you are working heavy shift hours then you can try Full body workout 3 days a weak
Final step
After choosing your split add rest days accordingly.
Eat 1.5 gram of protein per kg weight to maximum recovery .
Personal tip
If you are a natural lifter you should workout only for 5 days maximum mostly focus on recovery and compleating protein intake to gain muscle.