I got into Queen’s, Western and uOttawa relatively early with a 3.39 CGPA and 165 LSAT so it’s definitely possible. I also had a downward trend in L2. I accepted Queen’s before I got responses from other schools.
Do your best and kill the LSAT. If you score over 160 and write a good personal statement, Queen’s is within reach.
"But if you never try, you'll never know just what you're worth...🎶
Seriously though people have gotten in with worse stats. Also you should know that Queens takes your B2 not your L2 so this may improve your chances.
Another important thing to note is that you can always take classes after your degree is complete to raise your CGPA if you're still not happy with it. Personally with a 3.55 I don't think it will hold you back and would put more time into your LSAT studying but that's your call.
Also if you don't get into Queens Law right away you can always transfer after 1L (provided that your grades are good enough) so just because you don't get into your 1st choice of law schools right away doesn't mean that you can't ultimately graduate from there, which is the only thing that really matters -though the difference in education, prestige, placement rates etc between schools seems to be fairly over blown imho.