u/Confused_Humann

When I was younger I knew ukranian but after moving to the states at 5 I forgot it and only retained my Russian. Now whenever I try relearning it my understanding is okay but my speaking is close to nonexistent. I was wondering if anyone had any advice on where to start. Should I try learning a bunch of vocab first and then worry about grammar or are there any better solutions ppl have found?

Thank you!