Living with Low Hemoglobin and B12 Deficiency

Hello. I have had low levels of hemoglobin all my life. First, when pregnant, my level was very low at 54 units. Then I used special needles, but I do not think this has really helped much.

I have low levels of hemoglobin. I have had iron and B12 analyzed. I have a deficiency of B12. I have taken this, but I do not see much result.

If you have had a similar case and how did you solve it