It is in your best interest to go through the Clearinghouse process, even if you have no intention of going to any college.
Once you have established your eligibility, you have negotiating ability, whether it be with college or pro folks. If they know you have options, it's harder for them to low-ball you.
If there is a question of whether you'll make it through the Clearinghouse, you need to know it now, while there is still time to do something about it.
Once you graduate from high school, your GPA is locked. Once you start full-time at any college, your SAT/ACT score is locked. Once you know it won't be an issue, there are no locks (in the good sense).