I probably abandon 75% to 80% of maps by turn 30 because I don't like the look of them. This is probably a very high proportion compared to other players, but I am often hoping to do specific things. I wrote a whole post here with some of my thoughts about this:
Generally, I think the map scripts included in the game are unlikely to give me what I want, so I use Acken's maps, or Hellblazers. They are linked in the post. Try them out. Both of them seem to give a bit more space, and Acken's give more ruins.
The Deity Challenge Lineup and Immortal Challenge Lineup threads both went to some trouble to find or create maps that would give a good game. The Acken video that you mention above was from the Deity Challenge, if I'm not mistaken. See here:
You could also try the Immortal Challenge maps and compare your efforts with those of other people.
Consentient went to a lot of trouble to find decent maps. He used a mod called Rotate Start Positions and (I think) Reseed in an attempt to get a map worth playing. He saved a lot of maps and junked the ones that were no good. I find very few maps that are really satisfying for what I want to do.
And as I said in the other thread, I found this interesting:
Generally speaking, I think the best advice (and something I often ignore!) is to play the map rather than try to play a certain strategy regardless of what the map is like. If you do the latter, be prepared for a lot of frustration. The screenshots you posted seem to show a clear opportunity to go coastal, and use cargo ships with Tradition to build science (though I can't see what the coastal tiles are like -- but there does seem to be space to settle there). If you go for Science like crazy, you might well reach Dynamite before anyone else, and then use Artillery to wipe out your opponents. Don't be seduced into thinking (like I usually am) that because China has a unique unit, then that is what you must use for a DomV. The map might force you to abandon that idea and go for something different. It usually seems to be best to adapt to the terrain rather than to try to overcome it. To quote from Consentient's guide:
"Step #2 - Should I always try to Dominate?
It has to be said that although a Domination victory is generally possible, not all maps are what you would call 'Domination-friendly', especially for noobs. There can be many obstacles thrown up by a combination of the civ you're playing, the map type, the map script, and the neighbours. This is not something that can be adequately described in full, but it will come from experience, and some trial and error.
Step #3 - Which policy tree do I open? When do I go to war? (The two most important questions)
These decisions can't really be taken independently. You should start with a decision about when you want to go to war, and an assessment of how quickly you think you can win (perhaps assisted by turns 1-15), but it can work the other way around, and you might decide that you want to open a certain tree, and then that will dictate your play.
I advise you to take the first approach in general, as your play will be more optimized to the map. Sometimes Honor is not the best choice and you'll struggle a lot more than if you'd gone Tradition, for example. The problem is that you only have a few turns before you have to choose which tree to open. Despite it being my least favourite of the 3 Domination-friendly trees, I would have to say, grudgingly, that if you are really unsure about which tree to open, Tradition is probably the most forgiving."
Bearing all that in mind, I found this to be an interesting post, with various milestones and branches in the game:
If you set your options to autosave every turn and to save about 300 turns, you can go back and replay from anywhere and see how things could be different with different decisions, like taking Tradition instead of Liberty or Honor, or settling in different spots. In my view it is well worth making these sorts of experiments. It can be very illuminating to see how different the game can be as a result of different decisions at crucial moments. And it can even be VERY different purely as a result of random factors, like the AI settling in one place instead of another.
If you still have your autosave from turn 0, I would recommend starting the game again, going coastal and going Tradition, just to see what the difference is. Use Tabarnak's guide to tall play with food caravans / cargo ships: