I suggest you take a peek in pph, stan's guide or other user's protocol for research regarding your protocol.
You only need sn, that's the important part, other pills (benzo, ae, antacid, or even opiods) are only supplementary, it's there to help for the pain, nausea or any discomfort you might be experiencing when taken sn.
You have to be carefull not to reach a point of not being able to drink the sn because of taking too much benzos, that you are going to pass out or feel unwell enough not being able to do it.
Your protocol seems fine, and nothing wrong with it, maybe include a benzo, look up how long it takes for that particular pill to take effect, however taking too much of it, might reduce the time, crushing the pills into a drinkable solution allows for faster absorption so either take it after drinking the sn, or 30 minutes before sn.
And remember, sn is what causes death, not the pills, you just have to make sure it stays in your body and not vomit it all out
Again, do your research, and definitely dont make the decision too rashly, think it over, i wish you good luck, and remember, there are many people here whom you can talk to, even people that might have the same experience your are having.
Anyways, be strong, sending love!