I would try some periodation techniques. I did 5 x 5 for awhile then hit a plateau. Changing it up helped out allot.
Ive been working the 5x5 for 6 weeks now and its both taking a big toll on my body (LB from all the squats) and im not getting exactly the kind of gains I was hoping for. Where would you guys recommend I go at this point I still want to gain mass/strength but what should be the essence of my lifts (i.e. 5x5 is legs low rep heavy heavy weight).
Im wondering if I should do a chest, delt/back, bi/tri, leg split or what
advice appreciated

I would try some periodation techniques. I did 5 x 5 for awhile then hit a plateau. Changing it up helped out allot.
Try a horizontal push/pull, vertical push/pull, legs split.
Day 1: horizontal push/pull (bench, db presses, dips, bb rows, cable rows)
day 2: legs quad dom (squats, front squats, step ups, lunges)
day 3 : off
day 4: vert push/pull(pull ups, chins, standing BB press, db OH press, pull downs, etc.
day 5: legs ham dom(Romanian deadlifts, goodmornings, GHR's, SHELCS)
day 6: 0ff
day 7:0ff
Be more specific than "I did a 5x5 routine." There are a lot of ways to do it.
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5x5 just doesn't work for everyone, it didn't work for me either. Try a new type of routine to find what works. I assume by doing the 5x5 routine you want strength?
Age: 15, Mesomorph, Weight:155, Height:5'8
Bench:215
Deadlift:355
Squats:270 POWERLIFTING!!! All one reps
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