I am currently a County Extension Agent. It is a pain and we wish it wasn't.
If your county is relatively open with Covid restrictions, you may be able to go in to the office, sit for 3 hours and watch a video. It's only $60 then and you get the book and form that day. (save $15 and two weeks of waiting.)
After that it's out of our hands and you're at the mercy of the TDA.
If you're applying pesticides fairly often, the CEU requirement is annoying but not that bad. You need 15 hours over 5 years, or 3 a year average. Commercial guys need 5 a year. Your extension office will offer at least one 5 CEU event a year. If yours doesn't, the county over does.
Some people wait 5 years, never do a class, and then call me a month before their license expires and ask why it's so dang hard to fill the requirements. Sorry man, I only offered 10 hours every year and advertised online, the newspaper, a mailer, local tv, local radio...