Leveling
How are you struggling? What’s your build? Are you doing enough damage? Are you taking too much damage? Where are you leveling? What level are you? WHAT!
Personally I leveled with a condition + pistol/shield build as it allowed me to whittle down targets easily enough with a few ways to counter both ranged and melee types. I struggled a few times, but with GW2 the way it is, I always found someone to run with for a short time before I could get back into the solo swing.
I’m having no issues with firearms rifle and backup grenades/flamethrower for area effect. I’ll admit I haven’t tried much else, so I can only say that what I’m doing is working fine.
No offense, but this question baffles me. I soloed to 80 in 3 weeks with semi casual hours. In that time I used a lot of P/S, often changing to rifle to see what I like, and trying a lot of P/P. I never even remotely had any trouble.
Generally I stick with P/S and conditions, much like what Thagyr mentioned.
My question to you is, what exactly are you having trouble with?
Poor craftsman blame their tools. Poor players blame their Engineer.