Should you bulk or cut?

When I was 19 years old and first joined the gym
I saw other people in the gym, some were a bit fat and muscular
And some people were very skinny and very few of them were lean and very muscular at the same time
Now obviously I had a clear goal, I wanted to be jacked
But the problem was a lack of information about exercise and nutrition
Everyone had a different answer to my question
Some people said to be big you have to lift heavy weights for low reps and eat a lot of food
and some said to lift light weights for a lot of reps
Now I was confused, about what to do and which advice I should apply and invest my time in
So I took the “lift heavy and eat a lot” advice and started implementing it
8 months in I saw some changes, my strength increased but my muscle mass was less
I was like every other kid “impatient” and wanted fast results
Now after 1.5 years, my strength plateaued and I was frustrated, didn’t know what to do
So I started cutting took the 2nd person’s advice and continued
And guess what, I got weak because of lifting lighter weights for a lot of reps
But then how did I achieve the physique I currently have?
After wasting 3 years trying to figure out what works and what doesn’t.
I got to know that to build muscle you need to get stronger over time
And to lose fat you need to eat a specific amount of CALORIES every single day
Then I took action on that advice and 2 years from that, I finally had the physique I wanted
And by using that same principle I’ve helped many people to achieve their fitness goals