A new garage door install is not a weekend DIY project, and I'll say that plainly rather than hedge it. The door itself might look like a panel kit, but the springs are under enough tension to break a hand or worse if you don't have the winding bars and the technique. Track alignment is unforgiving - off by a quarter inch at the top and the door binds or jumps the track within weeks.
What a homeowner in Pecan Grove *can* reasonably do themselves: swap weatherstripping, lubricate rollers and hinges, tighten loose hardware, and test the auto-reverse safety feature on an opener that's already installed. Those are maintenance tasks, not installation tasks. If you're weighing a full replacement because the current door is from the original 1995-era build, that's a job for someone doing it daily, not someone doing it once. The failure mode that puts people in the ER with these jobs is almost always the spring, not the panel.