It is better to have a poor strategy than no strategy at all. We often focus on luck and forget about strategies. And in my opinion, this is the key for a person who sets a goal in gambling to make money, and not just to enjoy a random win. But in my opinion, people underestimate most strategies. You have a strategy and you are trying to figure out how good it is. I would suggest comparing it to a blind game, in which you have no strategy. So, we can compare no strategy with a poor strategy. Most likely, a poor strategy will just drain your money more slowly. But isn't that better than losing quickly, lol?
I'm not a person who plays for money, but I still have to agree with you that having a strategy, even a basic one, is already a giant step compared to betting on "guesswork" or just counting on luck. After all, luck may work out sometimes, but in the long run it doesn't sustain anyone, which is why it's important to have some kind of plan.
No matter how simple it is, over time you can adjust and improve this strategy... you learn from your mistakes and improve it. The important thing is to start with something basic, following statistics or betting only on teams/games that you know well, and then refine it as you gain more experience. The problem is when someone doesn't even try to create a strategy and just plays without thinking, thinking that they'll "break the bank" on the first try. And the worst thing is when this happens, then they get all excited, double the bet and then fail badly.
Ultimately, I think the most important thing is to view betting as a process, not as a shot in the dark... even if your strategy isn't perfect, it forces you to think before acting, which already makes a huge difference.