Feel Like I'm Stuck in a Rut - M/23/228 Hello everyone!

I feel like I'm stuck in a huge rut lately...I went from 331 down to 228 and now I've been stagnant since October. Here's a quick run-down of my routine:

Monday, Wednesday - Weight lifting coupled with cardio.
Tuesday, Thursday, Sunday - Rest.
Friday, Saturday - Capoeira. 

I'm normally eating around 1,800 calories completely plant based. My protein levels are very high so that's not an issue. I'm burning close to 3,500 calories a day.

So what's going on...is this just something I need to wait and break through or am I doing something wrong? My goal is to be below 200lbs but god dammit it's frustrating hitting this big of a road block.

Thanks everyone! 