From achievements you get buff scrolls, exp (+50%/100%) scrolls, jewelry, armors, potions, scrolls of escape to various towns, soulshots/spiritshots, and few other things. You can make 1-40 in no time.
If you're really buff-greedy, you can teleport to Giran harbor (free from any gatekeeper) and ask someone to buff you. Im sure you'll find a friendly prophet or whatever who could give you few buffs.
You can port to Giran town by porting to Giran harbor and doing SOE.
If you need cash, you can try fishing. You'll spend around 60k~ for a fishing pole, bait and soulshots which will be enough for you to to fish for 24 hours straight. In that time you should get 250k worth of fish. And you'll get some exp (24h of fishing at 25~ level will get you up to 27). However, in my opinion fishing is not worth wasting time. My PC takes around 1.3-1.5 eur worth of electricity per 24 hours. I can donate that money and get almost 2kk adena selling donate coins. So... do the math.
By the way, I suggest not wasting town SOEs randomly, because they'll be very useful during 2nd class transfer (you'll save a lot of time and money). And I advise you to get to 39 lvl and then do all three quests at the same time, because you'll probably have to kill the same mobs and go to the same areas.
