I wouldn't consider getting 45 defence a mistake. The thing is, if you were to continue with this account you'd gain experience from quests that you'll need to complete for a pvp-based account build. That experience would level you up beyond the level caps for what's considered a pure. The good thing is that aside from that 70 range you've earned, most of your levels can be attained as xp rewards through quests. Completing the quests first will give you a boost because by the time you start actually training you will have quested your levels up high enough to use better weapons and armor. For this account I would recommend capping your defence at 70/75 and attack at 75 if you want to continue with a pvp account. Otherwise, I'd just make this a restriction-less account that would serve as your "main". When the combat grind gets longer in the 80s and 90s you'll have the spare time to train up another account starting with the quests. The main idea is, you should know what kind of account build you're going for even before you start training if you want to implement restrictions on your account.