Thanks all for your advice.
Retem, thanks for your advice. It was the cog that was slipping. I ended up rotafixing it like you suggested and I haven’t had any problems since. I had to buy a new cog. I was riding on the Miche splined-carrier set-up and that was what the problem was. I just took that off and put a regular cog on.
Igneous Faction, I don’t know what I’m doing, but I’m slowly learning. No offense taken.
Thatcher, thanks. Choke on a cock you guzzler.