I've done both SS and Texas Method and got my Squat up to 485 lbs. Do SS (but make sure your technique is good enough, possibly by consulting a coach), don't do TM. Grinding 5x5 at near-maximal effort will be excessively fatiguing and potentially harmful. For balanced, evidence based programming and nutrition information I recommend https://www.youtube.com/c/BarbellMedicine .they have ton of free useful info on their website and youtube channel.