need indexer and bad link removal

I have website lots of existing backlinks

i read that upto 75% of backlinks are not indexed so you miss out on traffic, so im looking for software to automatically index my existing backlinks to major search engines or others.

But it needs to index my links not just create new ones.
Im new to this so need some advice too

I think i might have some bad backlinks too so need to know how to identify and remove these