SA good, Glock good
Get something with a longer barrel than self defense conceal pistols.
SA good, 5" barrel. Glock good too. Go to range. Fire from benchrest at 7 yd target. Adjust sight until hit bullseye with tight group. Make sure ammo functions 100%. Shoot different ammo brands until find the best for your pistol, accuracy and function.
Then ready. IDPA fun. IPSC not.
Good quick draw holster helps. Plus extra magazines loaded helps.
Practice.
good luck,
og