Tomorrow i'm gonna start taking Omeprazole and i'm scared

Tomorrow i'm gonna start with Omeprazole (20mg each day for a month) and i've been reading other people's bad experiences and side effects with this medicine and now i don't know what to do.

My heatburn is not so bad, my biggest problem is my throat. I always feel i have something stuck in it and when i look myself in the mirror with my mouth open, my esophagus looks hurt and sometimes a bit white (i guess because of the acids that come up, this has been happening to me for several months now).

I went yesterday to the doctor and she prescribed me this medicine.

Do you think my Gerd is gonna be cured after this month? Any good experience please?

Edit: Thanks for the advices and for telling your good experiences with Omeprazole!