Being a Master is a very hard to deal with in pvp, especially when you're so close to Grandmaster. I'd say you should level up one more level to get to level 50, gain that extra training point for something useful. You should watch out for enemy shielding, since everybody will most likely shield in a 1v1 match (besides storm or fire because some will be looking for a quick match) Other than that, you are at much of a disadvantage to everyone. Without the gear, crowns, amulets, it is impossible to face level 30 warlords with 50 resist and 40 damage and tons of crowns.
However, if you are not dedicated to pvp and don't spend enough time in your day for wizard101 (which is perfectly understandable) you should 2v2 with a random stranger, if you don't have any online friends to help you. 2v2 is perfect for life, because you can be the shielder and healer, which is very useful. I also suggest you try practice 1v1 (if you choose to continue 1v1) before you go on ranked, because your rank will only go down on ranked. Gain more experience! Chao!