Redditor shows up underdressed for an interview at McDonald's

When I was about 17 I had taken an iq test and didn't score very good. It is probably important to note that during that time and prior, I had been in and out of school due to unstable living circumstances. I am 21 now and in college. I've taken some of those online tests that I know are inaccurate just to see how I'd do and I've always gotten anywhere between 107 and 124. The fact that I scored so low on a real iq test worries me. Although it is somewhat irrational, I still deeply fear that I may actually have some kind of cognitive deficit that will (at some point) prevent me from pursuing my desired career, or any academic achievements or skills in a meaningful way. What would you all make of this?

I'm a 19m about to be 20 a month and two weeks from now and I just went down to a liquor store and purchased a bottle of Jack Daniels, I've never drank before and was curious to find out what it's like. I used my cash app card to buy it and now I'm scared to death that the police are going to find and arrest me. I have plans to go to college and I only wanted to try a shot just out of curiosity. I don't know who to turn to and I'm so scared now that I've essentially ruined my life.