I have used Interactive Brokers for almost 20 years now. Absolutely no complaints. Very robust with just about unlimited abilities to trade 24/7 around the world and in various currencies if you want to.
Probably more than most folks need. If you need phone support or just want it available......Interactive is not for you. They offer different platforms for different devices and they are very reliable. Learning curve is like most other new things.
You can take a look at the different platforms to see if they are overkill for you or might work. Might even be able to open a paper trading account to give it a test drive. I can't recall all the details.
It might be just as easy to learn Schwab's platform.
White 17, I have to hand it to you. You're a very lucid old man. Vietnam and 1965 is 59 years ago this fall. Too bad our current supposed POTUS, who is about your age (I think), isn't as with it as you