First of all, people expect Warriors to deal damage.
Two common builds (30-25-0-0-15 / 30-0-0-10-30) use 2 melee-weapons (Greatsword + Axe/X, with latter build you can also use Axe/Mace +Axe/X). Full Berserker Gear with either Ruby Orbs or Scholar Runes ( a lot more expensive but bit better damage potential). Going full offense may be problematic at start so you can have some defensive gear (Valkyrie/Knight/etc) but some people say it actually gets easier because less toughness gets less aggro from enemies.
Both build have 30 in Strength line because that has good damage traits (Dual Wielding, Axe Mastery, Slashing Power, Berserker’s Power). Both also invest 15 to Discipline for Fast Hands (important if you use Greatsword and Axe/X for better skill rotation).
30-25-0-0-15 is more suitable for solo and unorganized play because Forceful Greatword-trait allows you to get lots of Might. That’s exactly why this build invests 25 to Arms-line (+ also get that 10% more damage to Bleeding enemies). This is what I’m personally using at the moment.
30-0-0-10-30 relies on group giving you the Might. 10 points for Tactics are used for Empower Allies which gives big boost to everyone in your group (not so useful if your team has tanky players). It doesn’t stack so you have to switch to Empowered if someone else is using it. 30 points to Discipline are used to get Heightened Focus (still bugged, only giving 9% more Critical Chance which significantly weakens this build).
Regards your build, you haven’t listed what armor you use. If you are looking to get more damage, I would first replace Sapphire Orbs with Ruby Orbs (healing power is quite useless). And then proceed with rest of the stuff until you are happy.
If you have some gold you should consider getting additional (Exotic) weapons with different sigils (Force for all-around use, Night for night dungeons, Bloodlust for stacking, off-hand with Sigil of Energy for dodging)
Also it is good to carry every different weapon in your inventory (at least Sword / Warhorn for mobility and one ranged weapon).
For example: Greatsword with Sigil of Force/Night, Axe with Sigil of Force/Night/Bloodlust, Warhorn with Sigil of Bloodlust (double stacking), Mace with Sigil of Battle, Sword with Sigil of Energy, Shield with Sigil of Energy, Longbow with Sigil of Force (I also have lots of other stuff but not so important).
Your utilities are solid but in group play you should swap On My Mark! to Banner of Discipline or Banner of Strength (unless someone is already using both).
Shield is quite useful in some situations but it will work fine even without traiting. Missile Reflection works very well in some cases but you have to keep in mind that other classes (Mesmer/Guardian) are much better at reflecting and they can easily protect entire group. What I’m trying to say that you are using lots of points just for one skill (Shield Stance).
However you should really consider taking those 5 in Arms and Tactics and putting them to Strength for Berserker Power.
If you get issues with dungeons you can always search for guides and look for videos (you can check links on my signature). You can always ask me in-game if needed.
Most importantly, experiment with stuff, figure out what you like and have fun!
