This is some very interesting feedback! Regarding the level design.. it's heavily insprired by Tower Of Heaven by asciisoft, which does demand a lot of precision at times, similar to the games you mentioned, but it's not supposed to be a frustrating level of hard. I generally like easier games... I agree the difficulty balance overall is a bit of a mess though, the last two levels are probably harder than they need to be.
The spinning/falling distinction is a very intentional one, though.. it's interesting you feel the way you do, but I think if you avoided dying constantly until you land, none of the obstacles would be much of a threat.
Finally, yeah, this is the first game I ever made, I've never even gotten close to a full project before this, and the entire time I was learning Clickteam Fusion as I go too. That doesn't excuse some of the bigger flaws since I knew I could do better as I was making it, but you are correct..
Also.. Thanks for the feedback!! I really really REALLY appreciate it and I'm glad you enjoyed a lot of stuff about my game