opening hand evaluation

I can see you are going to be an excellent player, you are going very deep into a concept that is only theory. High card points, rule of 20, quick trick and losing trick count. is more theory
Let me use this example and I am serious. You have 13 spades in your hand
Like all of us you would have NO Problem bidding 7 spades.
1. you only have 10 hcp that’s bad
2. you only have 3 quick tricks.
3. you have 0 losers
4. rule of 20 count your high card points and the number of cards in your 2 longest suit if it's more than 20 open the bidding let's see 10 hcp plus 13 for number of cards in longest suit open hand = 23

The reason for answering the question with a question. Is to suggest that if a hand meets 2 of the 4 criteria open the hand.
If it does not meet the requirement of 2 out of 4 don’t open.
Now let's say you seriously restrict your hand evaluation to this rule 10 times. 8 times it is very successful 2 times it gets you a bad result. I think 80% is a good success ratio no matter what you are doing.