Vitamin C should NOT be taken 20-30 minutes after the mms. This could be why you are not having success.
The vitamin C completely neutralizes the effects of mms. You should wait 2-3 HOURS after taking the vitamin C before taking the mms.
The 20-30 minutes applies to food and prescription meds.
Since the protocol for cancer calls for HOURLY doses, at least 10 hours in a row for at least 21 days in a row, I would wait several hours after I did my daily doses of mms and take the vitamin C before bedtime. Or I would take the vitamin C first thing in the morning and then start my hourly doses at say, noon.
Same goes for the baking soda. I wouldn't risk neutralizing the mms.
Good luck and all the best!