Where is the best place to farm for ber or jah?

Hello @AufsMowlx,
Pretty much any high-level area in hell with a large density of monsters is a good place to farm for any runes while having in mind that killing speed is a priority and RNG is part of the game too. Maps like Cows, Pits, Ancient Tunnels, Travincal, Chaos Sanctuary, Nihlathak, Lower Kurast, WSK, etc are all good places to farm runes but considering you are new and still gearing you may prioritize some maps over the others. For example, clearing cows would probably be pretty slow with your current gear but you could do some chaos sanctuary runs instead. Also, besides farming the runes yourself you could also trade items for runes too and the best method to do as a new player is by selling gems and jewels.
There are also quite a few threads and guides that can help you with additional answers and opinions. Here are a couple of them after a quick search:
http://forum.europebattle.net/threads/beginners-guide-road-to-supersayan-in-diablo-2.540101/
http://forum.europebattle.net/threads/best-place-to-farm-for-runes.544246/
http://forum.europebattle.net/threads/best-build-area-s-difficulty-for-gem-farming.546865/