As a computer scientist(MS in the field) it is my opinion that many of your fears are unfounded. It is true that jobs will be replaced(and have been to a small extent) but it is not likely that all jobs will ever be replaced, including those that don't require degrees.

Computers are dumb, that is not the best way to put it because they have zero intellectual and creative abilities. Zip, nada. Computers can do basic math, read from various kinds of memory and write to memory/screen and not much else. No matter how complex the task it gets narrowed to do those basic tasks(more or less, just keeping this non-technical). Software is dumb as well, but can be made to mimic intelligent systems in a very narrow scope, but are not intelligent.

When the assembly lines first started up people had many of the same fears. Even "unskilled" jobs will not be all replaced by machines in yours or even your grand kids lifetime. There needs to be huge advances in software and robotics for that to happen.

As a recent example, Microsoft released an "AI" chat program and in two days they had to shut it down because it became racist. The reason it did that is that people "taught" it to be that way. It would store peoples responses to other peoples questions and just spew it back out. That is the state of AI. It has no ability to reason or think creatively.

Those chess programs that beat chess masters are similar. They don't think they just were "taught" the rules of chess and fed chess moves from thousands of games played by masters. It had the advantage of quickly recalling counter-moves from a pool much larger than a person can hold in their head.

For a computer program to write an actual novel, it would have to follow the 100 monkeys idea(put 100 monkeys on 100 typewriters and eventually one will write a novel) and it wouldn't even know if it had created a novel.

I don't know a lot about robotics, but I haven't seen one with the dexterity of a human, maybe they exist.

Look at it this way, if what you fear comes true then nearly everyone will be in the same boat as you. I am not saying this because I am currently unemployable, it is what I always believed: Work is not life and a life shouldn't be measured by a person's job. Work pays for life and if humans were freed from having to work, things that are starting to be proposed, like basic income would become reality and people who would have 8-10 more hours a day to do something else, which may or not not be a good thing.

We are so far away from what you fear, that worrying about it is unproductive. I know that is easy to say that, and I have all sorts of fears that I can't get rid of so please don't take this like I am trivializing your fears.