What country?
If you are merely seeking to protect your immediate wealth, then try to buy silver and gold, these do not change in value much over time.
Ultimately though, protecting wealth is a much larger task. Societies must remain free as the more people are taxed, the less productive society becomes. The less productive society becomes, the less wealth there is for the whole - this is the short-sightedness of the control-freaks who seek out power and get it. If we don't each do our political duty to fight against corruption and big government, and thus high taxation that comes with them, then we will progressively lose our wealth and become enslaved - if not us, then our children.
As to what you might do, it depends on how limited your liberties are. I would suggest you get politically active, from contacting your representatives in government (if you have them) and/or forming a political group if you can, if not maybe you could donate $$ to those who are fighting for more liberty. It's difficult to suggest something without knowing more details.

Best of luck