I think you're deciding between a once in a lifetime experience/opportunity and Law school which will always be there. If I were in your shoes, I think the choice would be pretty easy (assuming you have a love for your project).
@"Nicole Hopkins" aren't the first three LSATs deleted from your record by the time you take the 4th? I say this because you can only take the LSAT 3x before waiting 2 years to do a 4th time, correct?
There are also defensive driving classes you can take for point reduction ask your insurance company. If you tell lsac you took a course, maybe lsac will say to themselves " hmm, seems like she's doing her best".... Maybe...
Definitely bubble page by page in LR, and try subvocalizing when you do it. So read the answers back to yourself from the test book and then repeat the sequence as you record them on the scantron. See if that makes a difference for you.