Are you in commuting distance of any of the IL publics? UIUC Engineering will be over $30,000 a year COA and they’re not known for good aid. I think it’s possible to pull an ACT composite score up by 3 points, which should put Alabama within reach if you choose the least expensive housing option. I would retake the test as many times as you can - sometimes the planets align and you get 4 subsections that you do well on in one sitting.