Does Previous Experience Make it Easier? New language choice

My native language is English, but I grew up with Spanish as a Mexican American. My Spanish is close to C2, Portuguese would be C1, and my Mandarin is close to B2, if not barely there.

I recently started learning Nahuatl. This is after learning Mandarin for 2.5 years (and still learning). I find Nahuatl so much easier - I'm more willing to accept language rules/logic that wouldn't fit into English or make sense right away. I roll with it. I had to do that for Mandarin - because early on I agonized over things not mapping neatly lol. Also, Nahuatl uses the same Latin based alphabet, so there are no characters to learn.

How has it been for you other multilinguals? In any case, I'm happy I chose Nahuatl because most Mexicans can't speak an indigenous language - only about 7%. I feel like this is honoring my roots too. My Guachichil indigenous ancestors used it as a lingua franca, and I also had Tlaxcalan ancestors who used it. I find the process fun, though for now, I'm devoting 20% of my language learning time to it. Mandarin still occupies 80%; I feel advanced enough in Mandarin to handle starting my 5th language slowly.