For me, I'm wondering if I'm learning the right material. If I self teach, how do I really know if I'm doing this right unless I get feedback? Also, many hiring

For me, I'm wondering if I'm learning the right material. If I self teach, how do I really know if I'm doing this right unless I get feedback? Also, many hiring managers might not recognize self-taught expertise. I might not want to work for those managers, but unfortunately, this includes a very large swath of potential jobs. Of course, I wonder if this certificate gets me anywhere as far as employment goes.