i have a website with good ranking.but it is very expensive for me and i am in detriment (for paying backlinks monthly) i have about 50 referring domain(bought links) and after 10 month i am still in detriment. all of my backlinks are high qaulity and local(country/language).also its created steadly and fully natural accroding to last google updates. oldest backlinks created 9 month ago and newest created 1 week ago. now i want remove some backlinks but i am afraid to loss current ranking. plz help and suggest me a way.