low conversion rate

hi . i started ig+ogads method about 2 months ago .i`m working to create and grow accs . acctually i run about 30 accounts on the same niche ,follow 4k people in one week every account and i feel like the convercion rate is very low .i know is my foult because i use a saturated niche ,like free instagram followers ,but i don`t know what niche can be profitable .i`m not so creative . i used some games niche but not working .maybe is here someone who want to colaborate with me ? exchange some ideas , tips etc ...? i attach a picture with my last stats . I have cpagrip too but still don`t kow to use it .still have ig accounts to edit them .i`m buying from buyaccs .

There you have it. You have answered your question yourself.
".i know is my fault because I use a saturated niche , like free Instagram followers"