The IMASK+ early treatment protocol (page 2) recommends:
Ivermectin2
0.4–0.6 mg/kg per dose (take with or after a meal [I have read that you need to take it with some fat]) — one dose daily, take for 5 days or until recovered. Use upper dose if:
1) in regions with aggressive variants (e.g. Delta);
2) treatment started on or after day 5 of symptoms or in pulmonary phase;
or 3) multiple comorbidities/risk factors.
and/or Hydroxychloroquine (preferred for Omicron): 200 mg PO twice daily; take for 5 days or until recovered.
We sailed through whichever variant we had by using the above. Was like a cross between the flu and a cold. We kept up the vitamins for 2 weeks but did the rest as prescribed. We used Emergen-C vitamin drink from Dollar General. Loaded with C plus a bunch of other stuff like your Bs.