Here is my input, take it or leave it.
Depending on villains you are playing against, you may need to adjust your strategy on the fly.
Total mouth breathers - straightforward ABC TAG is fine.
However, if you play ABC against better players, you will be very predictable. They will exploit you.
If you want to continue to improve at poker, you should be able to adjust your play style to suit the game dynamics. A well-rounded player should be able to play many styles well.
For example: I have been 3-betting very wide lately against a certain type of players. I have been caught with some garbage hands at showdown. However, opponents give me more action, and they pay me off when my micro-image is that of a loose aggressive player.
Against players that don't think, ABC TAG is just fine. Be patient, and value bet relentlessly.