Anybody know where can I go to cleared my whole colon up?? I been constipated for a year? Any suggestions

I’ve recently went to Renew Wellness Spa In Germantown, I had to pay $50 outta of my pocket and I’m not doing that again. They only cleared the small proportion of it, I wanna get my whole thing cleared up. I can’t even have a bowel movement it’s so stuck i can’t get it out any suggestions??