You CAN exterminate bed bugs whether an idiot or not! There was some discussion on here a while ago which encouraged me to look into the subject and I found suppliers you could purchase from.
There are also courses available I don't recollect the details, but, unless you intended marketing the service ( could be well worthwhile ) it's not worth spending money on something that won't return your investment.
However, with carpet cleaning a bit erratic today, I would seriously consider this as a potentially profitable enterprise.
If I was 46 rather than 66 I'd be looking at the more specialised niches in our industry and this could be a potentially profitable one which could also open doors to carpet cleaning for the same clients.
You must do the research first and either find the market or create it.