You become an achiever by achieving your goals. If you achieve your goals, you’re an achiever. If you don’t achieve your goals, you’re not an achiever.
To be an achiever, you must give your goals sufficient attention to reach, attain, or accomplish them. This means you must withdraw much of your attention from activities that are not directly leading to the accomplishment of your goals.
In a given week, where is your attention going? If you aren’t habitually obsessing over your goals, then what are you obsessing over instead?
What exactly are you reaching, attaining, or accomplishing in a typical week? Are you making progress on your goals by giving them many hours of attention, or are you putting your attention elsewhere?