You could still get back to SA with a Texas Tech degree, and your numbers scream Tech.
Yeah, if you took the LSAT cold, you really should retake it. Given how much a few points can effect the quality of the school you end up at, which is very determinative of how your early legal career will play out, the LSAT is probably the most important test you'll take in your legal career, excluding (but maybe even including) the bar. And, as Nealric said, a few more points could be worth some fat stacks of cash. Ruin your life now for another 2 months, study hard, retake the LSAT, and profit for the rest of your life. There's no reason a cold 155 can't be a warm 160-165.