Get well fast! Follow the general procedure for flu...drink warm liquids and rest.
This covid is a nasty bug, it keeps mutating and natural immunity from previous infection does not help.
I am not sure where you get your information but natural immunity is better protection than vaccine induced immunity.
Not true that natural immunity is better than vaccine induced immunity:
https://www.nejm.org...d_railB_article
Natural immunity offers greater COVID protection than vaccines, study finds (nbc12.com)
Anecdotally The people that I know that have been the sickest from Covid recently is people that have never gotten Covid regardless of vaccination.
I need to qualify my former statement. The best immunity is conferred by hybrid immunity - ie infection plus vaccine. From the study you cited:
https://www.nejm.org/doi/full/10.1056/NEJMoa2118946