okay, so when i was starting to play with relax all I basically had to learn how to balance the hard way (as most people do) and just practice it but, I will say it does help to keep your legs spread apart a little so you have a wider base.

and onto lifts, the way I mostly counter lifts is extended pecs, raised shoulders, extended elbows, and contracted wrists, but sometimes you need or can do other stuff such as lowering sholders (one of the most basic lift blocks that doesn't work to often) or doing the first one how hikou said it (and a few others but lets not get into them) I just basically try to shoot myself down and towards my opponent, but with anything the best way to learn is to experiment and practice what you learn.

that's all I have to say for now if you want any extra help find me in game sometimes and ill try to help you out!