Since u have TLW n an exotic armor piece. U should probly up your arsenal for pve. TLW kinda sucks now so get like suros/Monte Carlo/red death. All those good for both pvp n pve. Run heroic playlist n court of oryx for higher gear drops. Good luck guardian

Year 2 exotic if you don't have one yet

Yeah I'd second getting a good secondary. Thousand Yard Stare from the Vanguard is a solid choice with good impact and reasonable perks. Also really grind those Heroic strikes to get engrams and always do the trick of decoding them one at a time to make sure you're the highest possible light level each time you decode an engram. Court of Oryx is also a good leveling choice as well. Anything that gets you engrams will get your level up reasonably quick. Maybe just buy what you think you need or want to use weapons/armor wise and grow your Light by farming engrams, is what I recommend.