There's a real line between what's worth doing yourself and what isn't, and torsion springs sit firmly on the wrong side of it - they're under enough tension to cause serious injury, and we don't walk homeowners through that one over the phone. Tightening loose hardware, lubricating hinges and rollers, and clearing track debris are all fair game and worth doing a couple times a year, especially given how hard the cold here is on moving parts.
Where people get into trouble is adjusting opener force settings to compensate for a door that's actually binding mechanically - it masks the real problem until the door comes off the track entirely. If your door's from the mid-80s and you're hearing a new grinding or popping sound, that's a call, not a YouTube afternoon. We'd rather tell you honestly that a repair isn't worth it on a door this old than sell you parts for a system that's due for replacement anyway.