I can give advice on how to stay current as cheaply as possible, but unless you are very lucky in who you know, have weeks of time where you can glider tug or parachute drop for no pay, what do you expect?
Nothing in life is completely free, especially flying! The fact is, what I said in my previous post is about the sum of it. Other than that, I suggest that if you really want to fly .... learn for the hell of it, but then give up! You will
NOT be able to keep current for free, especially to begin with. Realise that, but hope that along the way you will discover ways to make it affordable .... Good Luck!
SS