The Shaman is one of the classes I'm least familiar with.
Tauren Females (especially Tauren Female Shamen) are pretty rare, though, so at least you won't see many others like yourself.
Hmmm... suggestions...
1. Hotkey your Tauren War Stomp ability immediately. It can give you a couple precious seconds to get off a heal spell or to start running away.
2. Consider doing Herbalism/Alchemy as Tauren get an inherent +15 bonus to Herbalism right. Besides, is there anything cooler than a huge Tauren prancing through the fields picking flowers?
3. Find someone that does leatherworking and befriend them. They can make some really nice armor for you. When you hit lvl 40, that leatherworker will be able to make Turtle Scale mail armor for you (great armor for Shamans).
4. Try to keep your skill up in all the different types of weapons you can use. You never know when a great weapon of any type will drop. Be sure to visit the weapons masters in Thunder Bluff, Orgrimmar, and Undercity to learn as many weapon types as you can.
5. For grouping: Groups love shamans that know how to use their totem spells. If you're interested in doing lots of grouping down the line (necessary if you want to go through instances), learn which totems are the most group friendly. In my own experience, I love having mana regeneration, damage resistance, and + to weapon damage totems in effect on the party. Also think about which totems will be most beneficial to the particular makeup of your group at the time. Mana regen may help you, but the rogues and warriors in the group won't find it useful at all. Try to maximize your effectiveness by using totems that benefit the most party members.
6. When you run across higher level shamans, consider politely asking them if they've found any particular strategies that they've found to be effective. Make sure to ask them what their talent specialization is to get an idea for how their strategies might relate to you (ex: Mages who specialize in fire talents have very different strategies from those who specialize in frost talents).