Should I send ACT or SAT scores

<p>I've taken the SAT over 2 times now and have only been able to achieve a 870 combined score of Math and Critical Reading(I know, I'm retarded). I took the ACT for the first time and got a composite score of 18. I did good on English and Reading, but was weak in Math and especially Science(I literally guessed on the whole section because I didn't even study it). I've applied to several schools and all they're waiting on is my Transcript and Scores. Should I send my ACT or SAT scores, or neither? Would you guys suggest I take it again? I'm giving up on the SAT, but I feel if I actually study for the ACT then I can get at least in the 20-25 range. Really, if you were in my situation, what would you do?</p>