I'm not sure whether you mean to address us all on
TLS or to address "TSL", one of the main posters on this site
I'll assume the former:
While there is nothing wrong with taking 50 practice tests (for reference I took about 30 the first time around and another 10 for my retake),
quality vastly outweighs quantity. You should spend time after each PT and review your mistakes. I found it useful to simply retry every question I got wrong the first time around on my PT's immediately after, to see if I was just being too hasty. But for every question you get wrong, don't move on to another PT until you know what the right answer is and WHY. Each question also has 4 wrong answers by nature. Explicitly identify why those are wrong too. Ask on here or look up explanations elsewhere if you get stuck. As a bonus, I found it useful to note any questions I wasn't 100% sure on, or guessed, while taking the test, that way even if I happened to guess correctly I would include those questions in my post-PT review.
If you are doing a thorough review every time, and don't feel burnt out, then the more the merrier! Just try to manage your prep so that you are peakinig on game day rather than dragging into it.
(I can't take credit for these ideas, I had a great LSAT tutor and used TLS knowledge as well, hopefully others can chime in too).
Good luck!