Here are some tips. You don't have to follow them, obviously, but here's what I recommend.
Keep your DoTs up on the primary target, but don't overwrite early. This doesn't really matter that much at low levels, but it matters a lot at endgame due to River of Blood, so getting used to doing it now really helps you get in the habit.
Don't use AoEs against less than 4-5 targets, and even then, focused fire is often better unless the targets have low health. In endgame dungeons, there are pulls where there are a large number of weak enemies designed to be AoEed. In Raids, there are places where you pull all the trash together and AoE them to death. Those are great times for AoEs. Normal pulls are not a great time. I see low level bards making this mistake a lot and either wasting all their TP on sub-optimal damage or just making it take forever to take down the mobs.
Prioritize Crit as a secondary stat. If you aren't sure of why, read the description of the trait "River of Blood."
Replace each of your basic attacks (Heavy Shot, Straight Shot, Venomous Bite, Windbite) with the following macros:
Code:
/micon (skillname)
/ac "Misery's End" <t>
/ac "Bloodletter" <t>
/ac (skillname) <t>
Where (skillname) is replaced with each of the four skills in the four different macros. Put the macros where the skills used to be on your hotbars. If you press the macro and your global cooldown doesn't start, jam on it until it does. What this will do is, whenever you try to use one of those four basic attacks, if Misery's End is ready and the target is weak enough, it'll go off. Otherwise, if Bloodletter is ready, it will go off. Otherwise, you'll do the skill you attempted to do. This will increase your DPS because you won't have to think about when to use bloodletter/misery's end, you can just jam on the button you want to jam on until it works, then switch to the next button to jam on. You can, and should, leave Misery's End and Bloodletter somewhere on your hotbars so you can see visually when they're ready to go in case it matters, but don't worry about clicking on them, just use the macro.
If you want to just do a basic attack on the target, if Straight Shot is not up, use Straight Shot. If Straight Shot is up but Straighter Shot is not, use Heavy Shot. If Straighter Shot is up, use Straight Shot. No need to alternate between them, just use Straight Shot to buff, and to guaranteed crit when Straighter Shot procs.
Use your cooldowns, don't wait on them (unless you're fighting a boss who has a DPS check coming up - save them for the check in that case). The cooldowns recharge fairly quickly, and really add to your DPS. Also, they apply to DoTs if you use them before you apply the DoT. You only have two DoTs, but they're important at endgame, and them critting is especially important.
Endgame rotation, single target: Straight Shot -> Internal Release (crossclass) -> Raging Strikes -> Blood for Blood (crossclass) -> Windbite -> Venomous Bite -> Steady Shot -> If Straighter Shot procs, Straight Shot, otherwise, Steady Shot (x5) -> (repeat from Windbite)
Obviously, use CDs when you can, and use Misery's End/Bloodletter every chance you get in the middle of that rotation (the macros really help here).
With multiple targets, after using Windbite and Venomous Bite on your primary target, you might want to use them on 1-2 other targets too. This will increase the chance of River of Blood proccing, but spread out your damage some. However, if you do this, you don't want to use the macored versions. You want to use the normal versions of the skills. Otherwise, you'll spread out your damage too much.
Hope some of this helps. I don't main BRD, but it was my first non-crafter 50.