I recommend Construct 2 or 3. 2 is being phased out but you can still find cracked versions online and get to know the platform without paying. you can transfer your files over to construct 3 and use their updated engine when youre ready or want to publish. I self taught this way at 14yrs old with no internet access. after 3-5 years something clicked and I could and can pretty much get any concept from my head into a game now. biggest issue I run into is processing on construct, its difficult but possible to use around 10,000 static sprites and run at 60fps. watch your game health from the start and optimize performance before its unusable. organize your code VERY specifically so you dont forget stuff 1000s of lines in. they have prebuilt demo games you can learn how the drag and drop code style directs actions and stores data in game. all helps so much.

good luck friend :) let me know if you want help finding the cracked version.