I would have expected Total FX to give you some noticeable improvement in your skin texture and acne scarring. It may be that you may need to wait a few months for the full effect of that treatment to take effect.
In my experience, durable (indefinite) improvement can be achieved with a combination of subcision and the TCA cross method (though I prefer to use a modified phenol solution rather than TCA). A series of treatments at 4 week intervals is recommended. The main side effect with the subcision procedure is bruising (resolves by 2 weeks). Depending on your skin tone, the Cross method (application of a strong chemical peel solution to scars to promote new collagen growth) can cause temporary red or brown spots that gradually fade over time. With these methods, patience is a virtue, as improvement can continue to be seen 1 year or longer after treatment.
Good luck.
