I’m a barbarian one one campaign and a paladin in another - any pointers for when I start levelling up?

first session of Strahd was yesterday. Seems pretty gloomy. We are about to go in a large house in search of an unknown monster. Basically a dungeon crawl from the sounds of it but in a town setting. It’s pretty good so far. One bar room brawl in the books and two dire wolves went to meet their maker. I’m a paladin in the Strahd campaign. Dwarf for race in both