Does extensive skincare work?

Does it work well for people who do it?

Because my whole life I didn't have any bad skin issues and for more than half of that life I didn't even apply moisturizer to my face. I just washed my face with just water; and with cleanser if i went out. And one or two pimples popped out a few times, I didn't pop it or anything it just went away. The only time I tried skincare was when I was dating my ex because he made me fucking insecure about normal skin texture, and at that time I used to have horrible breakouts. Now I do apply moisturizer after I cleanse my face and that's it.