I try to do more tournaments possible because there are a very skilled player (so i can learn) and good prizepool. Usually with 2 or 3 winning match you endend in prizepool. It's a very incredible booster for growth of your deck especially in your level.
There are a tournament called "Kobold Mining Expedition NLS" that permit to play only card level 1, in this case you can fight with your same level deck's players. Try it and give me a feedback!