Should I Rush?
There's some really interesting lessons, and I'm excited to get to them... The only problem is that I'm scared to advance.
If I rush through the lessons and get level one in each of them, then I can practice the ones I'm interested in. However, I'll then have to go back and practice all of the ones that I haven't properly studied.
It may be overwhelming, but it's good to be interested in what you're learning. I haven't been very motivated lately, so studying stuff I want to could help... (Yes, I know there's other resources to learn a language aside from Duolingo. I do self study so I can go at my own pace, but Duolingo is the best resource I have.)
I've tried weighing the pros and cons of each option, I just don't know what to do.
(Yes, this post isn't very serious... It's probably not a big deal to you, bUt ThIS StuFF mAtTErS tO mE)
I rushed through the tree several times. Though there are still a lot of places which still look new to me, overall I feel great. By blasting through all the lessons, I came to know what language phenomena Duolingo would want us to know about the Korean language. That way, in the following rounds I paid more attention to some foreign concepts.
Everyone has their own learning style. The good thing about Duolingo's crown level is that you can always come back and restart from beginning. Good luck!
From personal experience: I rushed through the last section of Japanese, and it felt great to finally reach the end! Kind of like proving to myself that yes, I can actually do this, and now that I've done it I can focus on making all topics gold without the pressure of "but there's so much left! I'll never finish it!"
If you're not finding topics too hard, I think you should rush through them to get to the interesting bits. Like you said, you can always come back and level them up later -- they're not going anywhere, and this way you have some idea of what to expect further on. And to be honest, doing more than two levels of any topic at a time just feels incredibly boring and repetitive...