Im pretty new to oblivion and i started about 2 days ago, Im a dark elf spellsword and my sign is the lady, is that a good class for dark elfs, and i chose the lady since i would have more will power for magicka and endruance for health im guessing
Yes, you got yourself a good character. In the long term picking Mage instead of Lady would have been better, but as a newbie you'll benefit more from the Lady's early game boosts.
It's rather hard to completly mess up your character anyway, especially in the long term. At level 25 and above you'll start finding magic items that are so powerful it becomes completly irrelevant what your race, class, and birthsign are. So my general advice is pick your race based on looks, not abilities. And for the first 15-20 levels you'll want to strongly focus on 2-4 of your major skills and let the others fall behind (by using them as little as possible).