For pure language understanding, learn enough so you can start reading in that language. Then read. It's a great way for knowledge deepening and upkeep. For pr

For pure language understanding, learn enough so you can start reading in that language. Then read. It's a great way for knowledge deepening and upkeep. For pronunciation and accent there's probably nothing better than spending time with native speakers. In that scenario, don't stunt yourself by being afraid of making mistakes. People will understand.