My tailbone is messed up and i cant afford a chiro anymore.?

im onl 17 and when i was about 10 i was bucked of the same horse multiple times...i was determined to train him, one concussion and possibly fractured tailbone later, he was the best horse ever. my tailbone hurt for a few months, couldnt sit down without pain shooting up my back...finally convinced my mom to take me to the chiro, he cracked me a couple times, a week later it was better...now, mainly recently the past year or so, every couple weeks my tailbone would start to ache for no reason...go to chiro get it fixed...i am now footing my own chiro bill and cannot do it anymore...i need my tailbone to perminately stop hurting for good...help?