OP: There are so many scholarships for which you may be eligible that I quit researching.
Departmental, Performance, & Service Scholarships at a minimum include a non-resident tuition waiver. Given for activities like theatre arts, art, music, chorus, band, orchestra, journalism, cheerleading, and dance.
Additionally, most–or all–STEM majors receive $2,000 per year scholarship.
As a Texas resident you belong to the ACM–Academic Common Market. 15 states belong. Non-resident tuition waiver for majors not available in your state. The 15 states are:
Alabama, Arkansas, Del, Fla, Georgia, Kentucky, Louisiana, Maryland, Miss., Okla., South Carolina, Tenn, Texas, Virginia, & West Virginia.
Student body President Scholarship, Eagle Scout/Girl Scout Gold Award, etc.